Area Code 240 phone numbers
State: Maryland
- In service since: 1997
- Landlines: 381
- Wireless prefixes: 226
- Carriers: 49
- Counties: 16
- ZIP codes: 46
- Major cities: Washington, Beltsville, Frederick, Hagerstown, Annapolis Junction
Area Code 240 has 589 prefixes
| Prefix | County | City | Carrier |
|---|---|---|---|
| 1-240-200 | District of Columbia | Washington | Bandwidth.com Clec, Llc - Md |
| Prefix | 1-240-200 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Bandwidth.com Clec, Llc - Md | ||
| 1-240-201 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-201 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-203 | Washington | Hagerstown | Sprint Spectrum L.p. - Md |
| Prefix | 1-240-203 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Sprint Spectrum L.p. - Md | ||
| 1-240-204 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-204 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-205 | Howard | Annapolis Junction | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-205 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-206 | District of Columbia | Washington | Xo Maryland, Llc |
| Prefix | 1-240-206 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-207 | District of Columbia | Washington | Cavalier East Llc - Md |
| Prefix | 1-240-207 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cavalier East Llc - Md | ||
| 1-240-208 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-208 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-209 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-209 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-210 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-210 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-212 | Frederick | Frederick | Core Communications, Inc. - Md |
| Prefix | 1-240-212 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-213 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-213 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-214 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-214 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-215 | Frederick | Ijamsville | Telcove Operations, Inc. - Md |
| Prefix | 1-240-215 | ||
| Country | Frederick | ||
| City | Ijamsville | ||
| Carrier | Telcove Operations, Inc. - Md | ||
| 1-240-216 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-216 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-217 | Frederick | Frederick | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-217 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-218 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-218 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-219 | Fairfax | Vienna | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-219 | ||
| Country | Fairfax | ||
| City | Vienna | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-220 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-220 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-221 | Montgomery | Rockville | Verizon Maryland, Inc. |
| Prefix | 1-240-221 | ||
| Country | Montgomery | ||
| City | Rockville | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-222 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-222 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-223 | District of Columbia | Washington | Allegiance Telecom, Inc. - Md |
| Prefix | 1-240-223 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Allegiance Telecom, Inc. - Md | ||
| 1-240-224 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-224 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-225 | Frederick | Frederick | Core Communications, Inc. - Md |
| Prefix | 1-240-225 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-228 | Prince Georges | Laurel | Verizon Maryland, Inc. |
| Prefix | 1-240-228 | ||
| Country | Prince Georges | ||
| City | Laurel | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-229 | District of Columbia | Washington | Broadwing Communications. Llc - Md |
| Prefix | 1-240-229 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Broadwing Communications. Llc - Md | ||
| 1-240-230 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-230 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-231 | Frederick | Frederick | Core Communications, Inc. - Md |
| Prefix | 1-240-231 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-232 | District of Columbia | Washington | Broadwing Communications. Llc - Md |
| Prefix | 1-240-232 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Broadwing Communications. Llc - Md | ||
| 1-240-233 | District of Columbia | Washington | Teleport Communications America, Llc - Dc |
| Prefix | 1-240-233 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Teleport Communications America, Llc - Dc | ||
| 1-240-234 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-234 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-235 | Montgomery | Chevy Chase | Paetec Communications, Inc. - Md |
| Prefix | 1-240-235 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Paetec Communications, Inc. - Md | ||
| 1-240-236 | Frederick | Frederick | Verizon Maryland, Inc. |
| Prefix | 1-240-236 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-237 | Prince Georges | Beltsville | Teleport Communications America, Llc - Dc |
| Prefix | 1-240-237 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Teleport Communications America, Llc - Dc | ||
| 1-240-238 | Montgomery | Chevy Chase | Paetec Communications, Inc. - Md |
| Prefix | 1-240-238 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Paetec Communications, Inc. - Md | ||
| 1-240-239 | Montgomery | Chevy Chase | Core Communications, Inc. - Md |
| Prefix | 1-240-239 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-241 | Prince Georges | Lanham | Starpower Communications, Llc - Md |
| Prefix | 1-240-241 | ||
| Country | Prince Georges | ||
| City | Lanham | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-242 | Prince Georges | Lanham | Starpower Communications, Llc - Md |
| Prefix | 1-240-242 | ||
| Country | Prince Georges | ||
| City | Lanham | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-243 | District of Columbia | Washington | Allegiance Telecom, Inc. - Md |
| Prefix | 1-240-243 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Allegiance Telecom, Inc. - Md | ||
| 1-240-244 | District of Columbia | Washington | Starpower Communications, Llc - Md |
| Prefix | 1-240-244 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-245 | District of Columbia | Washington | Starpower Communications, Llc - Md |
| Prefix | 1-240-245 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-246 | Prince Georges | Lanham | Starpower Communications, Llc - Md |
| Prefix | 1-240-246 | ||
| Country | Prince Georges | ||
| City | Lanham | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-247 | District of Columbia | Washington | Allegiance Telecom, Inc. - Md |
| Prefix | 1-240-247 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Allegiance Telecom, Inc. - Md | ||
| 1-240-248 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-248 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-249 | District of Columbia | Washington | Teleport Communications America, Llc - Dc |
| Prefix | 1-240-249 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Teleport Communications America, Llc - Dc | ||
| 1-240-250 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-250 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-251 | Frederick | Frederick | Core Communications, Inc. - Md |
| Prefix | 1-240-251 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-252 | Fairfax | McLean | Level 3 Communications, Llc - Md |
| Prefix | 1-240-252 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Level 3 Communications, Llc - Md | ||
| 1-240-253 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-253 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-254 | District of Columbia | Washington | Teleport Communications America, Llc - Dc |
| Prefix | 1-240-254 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Teleport Communications America, Llc - Dc | ||
| 1-240-255 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-255 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-256 | District of Columbia | Washington | Teleport Communications America, Llc - Dc |
| Prefix | 1-240-256 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Teleport Communications America, Llc - Dc | ||
| 1-240-257 | District of Columbia | Washington | Teleport Communications America, Llc - Dc |
| Prefix | 1-240-257 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Teleport Communications America, Llc - Dc | ||
| 1-240-258 | Fairfax | McLean | Teleport Communications America, Llc - Dc |
| Prefix | 1-240-258 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Teleport Communications America, Llc - Dc | ||
| 1-240-260 | District of Columbia | Washington | Allegiance Telecom, Inc. - Md |
| Prefix | 1-240-260 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Allegiance Telecom, Inc. - Md | ||
| 1-240-261 | Fairfax | Vienna | Neutral Tandem-maryland, Llc - Md |
| Prefix | 1-240-261 | ||
| Country | Fairfax | ||
| City | Vienna | ||
| Carrier | Neutral Tandem-maryland, Llc - Md | ||
| 1-240-262 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-262 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-263 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-263 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-264 | Prince Georges | Beltsville | Verizon Maryland, Inc. |
| Prefix | 1-240-264 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-265 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-265 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-266 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-266 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-267 | Frederick | Frederick | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-267 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-268 | District of Columbia | Washington | Allegiance Telecom, Inc. - Md |
| Prefix | 1-240-268 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Allegiance Telecom, Inc. - Md | ||
| 1-240-269 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-269 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-270 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-270 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-271 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-271 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-272 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-272 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-273 | District of Columbia | Washington | Broadwing Communications. Llc - Md |
| Prefix | 1-240-273 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Broadwing Communications. Llc - Md | ||
| 1-240-274 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-274 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-275 | Frederick | Frederick | Core Communications, Inc. - Md |
| Prefix | 1-240-275 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-276 | Montgomery | Gaithersburg | Verizon Maryland, Inc. |
| Prefix | 1-240-276 | ||
| Country | Montgomery | ||
| City | Gaithersburg | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-277 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-277 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-278 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-278 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-279 | Montgomery | Chevy Chase | Core Communications, Inc. - Md |
| Prefix | 1-240-279 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-280 | Manassas City | Manassas | Comcast Phone Of Northern Maryland, Inc. - Md |
| Prefix | 1-240-280 | ||
| Country | Manassas City | ||
| City | Manassas | ||
| Carrier | Comcast Phone Of Northern Maryland, Inc. - Md | ||
| 1-240-281 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-281 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-282 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-282 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-283 | Montgomery | Chevy Chase | Paetec Communications, Inc. - Md |
| Prefix | 1-240-283 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Paetec Communications, Inc. - Md | ||
| 1-240-284 | Washington | Hagerstown | Level 3 Communications, Llc - Md |
| Prefix | 1-240-284 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Level 3 Communications, Llc - Md | ||
| 1-240-285 | Frederick | Frederick | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-285 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-286 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-286 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-288 | Washington | Hagerstown | Comcast Phone Of Northern Maryland, Inc. - Md |
| Prefix | 1-240-288 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Comcast Phone Of Northern Maryland, Inc. - Md | ||
| 1-240-289 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-289 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-290 | District of Columbia | Washington | Allegiance Telecom, Inc. - Md |
| Prefix | 1-240-290 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Allegiance Telecom, Inc. - Md | ||
| 1-240-291 | Frederick | Monrovia | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-291 | ||
| Country | Frederick | ||
| City | Monrovia | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-292 | Fairfax | McLean | Verizon Maryland, Inc. |
| Prefix | 1-240-292 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-293 | Fairfax | McLean | Starpower Communications, Llc - Md |
| Prefix | 1-240-293 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-294 | Manassas City | Manassas | Xo Maryland, Llc |
| Prefix | 1-240-294 | ||
| Country | Manassas City | ||
| City | Manassas | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-295 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-295 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-296 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-296 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-297 | Fairfax | McLean | Level 3 Communications, Llc - Md |
| Prefix | 1-240-297 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Level 3 Communications, Llc - Md | ||
| 1-240-298 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-298 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-299 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-299 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-300 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-300 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-302 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-302 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-303 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-303 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-304 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-304 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-305 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-305 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-306 | District of Columbia | Washington | Allegiance Telecom, Inc. - Md |
| Prefix | 1-240-306 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Allegiance Telecom, Inc. - Md | ||
| 1-240-307 | Washington | Hagerstown | At&t Local |
| Prefix | 1-240-307 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | At&t Local | ||
| 1-240-308 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-308 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-309 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-309 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-310 | Frederick | Frederick | Uscoc Of Cumberland, Inc. Dba United States Cel Md |
| Prefix | 1-240-310 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Uscoc Of Cumberland, Inc. Dba United States Cel Md | ||
| 1-240-312 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-312 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-313 | Washington | Hagerstown | Verizon Maryland, Inc. |
| Prefix | 1-240-313 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-314 | Montgomery | Rockville | Verizon Maryland, Inc. |
| Prefix | 1-240-314 | ||
| Country | Montgomery | ||
| City | Rockville | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-315 | Frederick | Frederick | Verizon Maryland, Inc. |
| Prefix | 1-240-315 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-316 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-316 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-317 | Prince Georges | Lanham | Starpower Communications, Llc - Md |
| Prefix | 1-240-317 | ||
| Country | Prince Georges | ||
| City | Lanham | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-318 | Manassas City | Manassas | Verizon Maryland, Inc. |
| Prefix | 1-240-318 | ||
| Country | Manassas City | ||
| City | Manassas | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-319 | Baltimore City | Baltimore | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-319 | ||
| Country | Baltimore City | ||
| City | Baltimore | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-320 | District of Columbia | Washington | Cavalier East Llc - Md |
| Prefix | 1-240-320 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cavalier East Llc - Md | ||
| 1-240-321 | Allegany | Cumberland | Uscoc Of Cumberland, Inc. Dba United States Cel Md |
| Prefix | 1-240-321 | ||
| Country | Allegany | ||
| City | Cumberland | ||
| Carrier | Uscoc Of Cumberland, Inc. Dba United States Cel Md | ||
| 1-240-322 | Frederick | Frederick | Core Communications, Inc. - Md |
| Prefix | 1-240-322 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-324 | Baltimore City | Baltimore | Ymax Communications Corp. - Md |
| Prefix | 1-240-324 | ||
| Country | Baltimore City | ||
| City | Baltimore | ||
| Carrier | Ymax Communications Corp. - Md | ||
| 1-240-325 | Montgomery | Chevy Chase | Core Communications, Inc. - Md |
| Prefix | 1-240-325 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-326 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-326 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-327 | Montgomery | Chevy Chase | Core Communications, Inc. - Md |
| Prefix | 1-240-327 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-328 | Prince Georges | Beltsville | Verizon Maryland, Inc. |
| Prefix | 1-240-328 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-329 | Frederick | Frederick | Level 3 Communications, Llc - Md |
| Prefix | 1-240-329 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Level 3 Communications, Llc - Md | ||
| 1-240-330 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-330 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-331 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-331 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-332 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-332 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-333 | District of Columbia | Washington | Cavalier East Llc - Md |
| Prefix | 1-240-333 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cavalier East Llc - Md | ||
| 1-240-334 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-334 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-335 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-335 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-337 | Fairfax | Vienna | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-337 | ||
| Country | Fairfax | ||
| City | Vienna | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-338 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-338 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-339 | District of Columbia | Washington | Cavalier East Llc - Md |
| Prefix | 1-240-339 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cavalier East Llc - Md | ||
| 1-240-340 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-340 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-341 | Frederick | Frederick | Mci Worldcom Communications, Inc. - Md |
| Prefix | 1-240-341 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Mci Worldcom Communications, Inc. - Md | ||
| 1-240-342 | Prince Georges | Lanham | Starpower Communications, Llc - Md |
| Prefix | 1-240-342 | ||
| Country | Prince Georges | ||
| City | Lanham | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-343 | Washington | Hagerstown | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-343 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-344 | Frederick | Monrovia | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-344 | ||
| Country | Frederick | ||
| City | Monrovia | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-345 | Baltimore City | Baltimore | Level 3 Communications, Llc - Md |
| Prefix | 1-240-345 | ||
| Country | Baltimore City | ||
| City | Baltimore | ||
| Carrier | Level 3 Communications, Llc - Md | ||
| 1-240-346 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-346 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-347 | Washington | Hagerstown | Bandwidth.com Clec, Llc - Md |
| Prefix | 1-240-347 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Bandwidth.com Clec, Llc - Md | ||
| 1-240-348 | Fairfax | McLean | Level 3 Communications, Llc - Md |
| Prefix | 1-240-348 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Level 3 Communications, Llc - Md | ||
| 1-240-349 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-349 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-350 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-350 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-351 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-351 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-352 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-352 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-353 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-353 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-354 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-354 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-355 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-355 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-356 | Frederick | Frederick | Level 3 Communications, Llc - Md |
| Prefix | 1-240-356 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Level 3 Communications, Llc - Md | ||
| 1-240-357 | Frederick | Frederick | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-357 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-358 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-358 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-359 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-359 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-360 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-360 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-361 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-361 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-362 | Allegany | Cumberland | Verizon Maryland, Inc. |
| Prefix | 1-240-362 | ||
| Country | Allegany | ||
| City | Cumberland | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-363 | Fairfax | Vienna | Global Naps South, Inc. - Md |
| Prefix | 1-240-363 | ||
| Country | Fairfax | ||
| City | Vienna | ||
| Carrier | Global Naps South, Inc. - Md | ||
| 1-240-364 | District of Columbia | Washington | Cavalier East Llc - Md |
| Prefix | 1-240-364 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cavalier East Llc - Md | ||
| 1-240-365 | Fairfax | Vienna | Baltimore-washington Telephone (bwt) |
| Prefix | 1-240-365 | ||
| Country | Fairfax | ||
| City | Vienna | ||
| Carrier | Baltimore-washington Telephone (bwt) | ||
| 1-240-366 | Washington | Hagerstown | At&t Local |
| Prefix | 1-240-366 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | At&t Local | ||
| 1-240-367 | Frederick | Frederick | Sprint Spectrum L.p. |
| Prefix | 1-240-367 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-368 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-368 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-369 | Frederick | Mount Airy | Core Communications, Inc. - Md |
| Prefix | 1-240-369 | ||
| Country | Frederick | ||
| City | Mount Airy | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-370 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-370 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-371 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-371 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-372 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-372 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-373 | Anne Arundel | Odenton | Verizon Maryland, Inc. |
| Prefix | 1-240-373 | ||
| Country | Anne Arundel | ||
| City | Odenton | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-374 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-374 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-375 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-375 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-376 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-376 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-377 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-377 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-378 | Frederick | Frederick | Core Communications, Inc. - Md |
| Prefix | 1-240-378 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-379 | Frederick | Frederick | Verizon Maryland, Inc. |
| Prefix | 1-240-379 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-380 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-380 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-381 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-381 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-382 | Washington | Hagerstown | Teleport Communications America, Llc - Md |
| Prefix | 1-240-382 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Teleport Communications America, Llc - Md | ||
| 1-240-383 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-383 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-384 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-384 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-385 | Frederick | Frederick | Verizon Maryland, Inc. |
| Prefix | 1-240-385 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-386 | Montgomery | Gaithersburg | Verizon Maryland, Inc. |
| Prefix | 1-240-386 | ||
| Country | Montgomery | ||
| City | Gaithersburg | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-387 | District of Columbia | Washington | Cavalier East Llc - Md |
| Prefix | 1-240-387 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cavalier East Llc - Md | ||
| 1-240-388 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-388 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-389 | District of Columbia | Washington | Atx Telecommunications Services, Ltd |
| Prefix | 1-240-389 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Atx Telecommunications Services, Ltd | ||
| 1-240-390 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-390 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-391 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-391 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-392 | Prince Georges | Lanham | Starpower Communications, Llc - Md |
| Prefix | 1-240-392 | ||
| Country | Prince Georges | ||
| City | Lanham | ||
| Carrier | Starpower Communications, Llc - Md | ||
| 1-240-393 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-393 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-394 | Washington | Hagerstown | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-394 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-395 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-395 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-396 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-396 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-397 | Frederick | Frederick | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-397 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-398 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-398 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-399 | District of Columbia | Washington | Xo Maryland, Llc |
| Prefix | 1-240-399 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-400 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-400 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-401 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-401 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-402 | Fairfax | Reston | Mci Worldcom Communications, Inc. - Md |
| Prefix | 1-240-402 | ||
| Country | Fairfax | ||
| City | Reston | ||
| Carrier | Mci Worldcom Communications, Inc. - Md | ||
| 1-240-403 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-403 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-404 | District of Columbia | Washington | Xo Maryland, Llc |
| Prefix | 1-240-404 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-405 | Frederick | Frederick | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-405 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-406 | District of Columbia | Washington | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-406 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-407 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-407 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-408 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-408 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-409 | Frederick | Monrovia | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-409 | ||
| Country | Frederick | ||
| City | Monrovia | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-412 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-412 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-413 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-413 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-414 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-414 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-415 | Frederick | Frederick | Ymax Communications Corp. - Md |
| Prefix | 1-240-415 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Ymax Communications Corp. - Md | ||
| 1-240-416 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-416 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-417 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-417 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-418 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-418 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-419 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-419 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-420 | Washington | Hagerstown | Verizon Maryland, Inc. |
| Prefix | 1-240-420 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-421 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-421 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-422 | Frederick | Frederick | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-422 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-423 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-423 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-424 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-424 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-425 | Fairfax | Vienna | Dslnet Communications Va, Inc. - Md |
| Prefix | 1-240-425 | ||
| Country | Fairfax | ||
| City | Vienna | ||
| Carrier | Dslnet Communications Va, Inc. - Md | ||
| 1-240-426 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-426 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-427 | District of Columbia | Washington | Xo Maryland, Llc |
| Prefix | 1-240-427 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-428 | District of Columbia | Washington | Bandwidth.com Clec, Llc - Md |
| Prefix | 1-240-428 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Bandwidth.com Clec, Llc - Md | ||
| 1-240-429 | Prince Georges | Hyattsville | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-429 | ||
| Country | Prince Georges | ||
| City | Hyattsville | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-430 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-430 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-431 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-431 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-432 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-432 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-433 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-433 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-434 | District of Columbia | Washington | Broadwing Communications. Llc - Md |
| Prefix | 1-240-434 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Broadwing Communications. Llc - Md | ||
| 1-240-435 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-435 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-436 | Frederick | Ijamsville | Telcove Operations, Inc. - Md |
| Prefix | 1-240-436 | ||
| Country | Frederick | ||
| City | Ijamsville | ||
| Carrier | Telcove Operations, Inc. - Md | ||
| 1-240-437 | Prince Georges | Beltsville | Xo Maryland, Llc |
| Prefix | 1-240-437 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-438 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-438 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-439 | Frederick | Frederick | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-439 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-440 | Frederick | Monrovia | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-440 | ||
| Country | Frederick | ||
| City | Monrovia | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-441 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-441 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-442 | Garrett | Oakland | Verizon Maryland, Inc. |
| Prefix | 1-240-442 | ||
| Country | Garrett | ||
| City | Oakland | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-444 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-444 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-445 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-445 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-446 | Frederick | Frederick | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-446 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-447 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-447 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-448 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-448 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-449 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-449 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-450 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-450 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-451 | Allegany | Cumberland | Neutral Tandem-maryland, Llc - Md |
| Prefix | 1-240-451 | ||
| Country | Allegany | ||
| City | Cumberland | ||
| Carrier | Neutral Tandem-maryland, Llc - Md | ||
| 1-240-452 | Washington | Hagerstown | Lumos Networks Inc. - Va |
| Prefix | 1-240-452 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Lumos Networks Inc. - Va | ||
| 1-240-453 | Montgomery | Rockville | Verizon Maryland, Inc. |
| Prefix | 1-240-453 | ||
| Country | Montgomery | ||
| City | Rockville | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-454 | Montgomery | Chevy Chase | Paetec Communications, Inc. - Md |
| Prefix | 1-240-454 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Paetec Communications, Inc. - Md | ||
| 1-240-455 | Loudoun | Sterling | Paetec Communications, Inc. - Md |
| Prefix | 1-240-455 | ||
| Country | Loudoun | ||
| City | Sterling | ||
| Carrier | Paetec Communications, Inc. - Md | ||
| 1-240-456 | Prince Georges | Laurel | Verizon Maryland, Inc. |
| Prefix | 1-240-456 | ||
| Country | Prince Georges | ||
| City | Laurel | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-457 | Frederick | Frederick | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-457 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-458 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-458 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-459 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-459 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-460 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-460 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-461 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-461 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-462 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-462 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-463 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-463 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-464 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-464 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-465 | District of Columbia | Washington | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-465 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-466 | District of Columbia | Washington | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-466 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-467 | Prince Georges | Beltsville | Comcast Phone Of Northern Maryland, Inc. - Md |
| Prefix | 1-240-467 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Comcast Phone Of Northern Maryland, Inc. - Md | ||
| 1-240-468 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-468 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-469 | Washington | Hagerstown | Sprint Spectrum L.p. - Md |
| Prefix | 1-240-469 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Sprint Spectrum L.p. - Md | ||
| 1-240-470 | Prince Georges | Beltsville | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-470 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-471 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-471 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-472 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-472 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-473 | Fairfax | Herndon | Cavalier Telephone Mid-atlantic, Llc - Md |
| Prefix | 1-240-473 | ||
| Country | Fairfax | ||
| City | Herndon | ||
| Carrier | Cavalier Telephone Mid-atlantic, Llc - Md | ||
| 1-240-474 | Prince Georges | Beltsville | Baltimore-washington Telephone (bwt) |
| Prefix | 1-240-474 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Baltimore-washington Telephone (bwt) | ||
| 1-240-475 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-475 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-476 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-476 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-477 | Manassas City | Manassas | Lightwave Communications, Llc - Md |
| Prefix | 1-240-477 | ||
| Country | Manassas City | ||
| City | Manassas | ||
| Carrier | Lightwave Communications, Llc - Md | ||
| 1-240-478 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-478 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-479 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-479 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-480 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-480 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-481 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-481 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-482 | Fairfax | McLean | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-482 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-483 | District of Columbia | Washington | Comcast Phone Of Northern Maryland, Inc. - Md |
| Prefix | 1-240-483 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Comcast Phone Of Northern Maryland, Inc. - Md | ||
| 1-240-484 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-484 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-485 | Fairfax | McLean | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-485 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-486 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-486 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-487 | Fairfax | McLean | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-487 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-488 | Allegany | Cumberland | Shentel Communications, Llc - Md |
| Prefix | 1-240-488 | ||
| Country | Allegany | ||
| City | Cumberland | ||
| Carrier | Shentel Communications, Llc - Md | ||
| 1-240-489 | District of Columbia | Washington | Xo Maryland, Llc |
| Prefix | 1-240-489 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-490 | Frederick | Frederick | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-490 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-491 | Global Crossing Local Services, Inc.-md | ||
| Prefix | 1-240-491 | ||
| Country | |||
| City | |||
| Carrier | Global Crossing Local Services, Inc.-md | ||
| 1-240-492 | Fairfax | McLean | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-492 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-493 | Fairfax | McLean | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-493 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-494 | District of Columbia | Washington | Cavalier East Llc - Md |
| Prefix | 1-240-494 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cavalier East Llc - Md | ||
| 1-240-495 | Prince Georges | Hyattsville | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-495 | ||
| Country | Prince Georges | ||
| City | Hyattsville | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-496 | District of Columbia | Washington | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-496 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-497 | Montgomery | Chevy Chase | Verizon Maryland, Inc. |
| Prefix | 1-240-497 | ||
| Country | Montgomery | ||
| City | Chevy Chase | ||
| Carrier | Verizon Maryland, Inc. | ||
| 1-240-498 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-498 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-499 | Fairfax | McLean | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-499 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-500 | Frederick | Frederick | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-500 | ||
| Country | Frederick | ||
| City | Frederick | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
| 1-240-501 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-501 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-502 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-502 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-503 | Montgomery | Silver Spring | Peerless Network Of Maryland, Llc |
| Prefix | 1-240-503 | ||
| Country | Montgomery | ||
| City | Silver Spring | ||
| Carrier | Peerless Network Of Maryland, Llc | ||
| 1-240-504 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-504 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-505 | Prince Georges | Beltsville | Omnipoint Communications Cap Operations, Llc |
| Prefix | 1-240-505 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Omnipoint Communications Cap Operations, Llc | ||
| 1-240-506 | Prince Georges | Beltsville | New Cingular Wireless Pcs, Llc - Dc |
| Prefix | 1-240-506 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | New Cingular Wireless Pcs, Llc - Dc | ||
| 1-240-507 | Howard | Annapolis Junction | Cellco Partnership Dba Verizon Wireless - Md |
| Prefix | 1-240-507 | ||
| Country | Howard | ||
| City | Annapolis Junction | ||
| Carrier | Cellco Partnership Dba Verizon Wireless - Md | ||
| 1-240-508 | District of Columbia | Washington | Sprint Spectrum L.p. |
| Prefix | 1-240-508 | ||
| Country | District of Columbia | ||
| City | Washington | ||
| Carrier | Sprint Spectrum L.p. | ||
| 1-240-509 | Baltimore City | Baltimore | Bandwidth.com Clec, Llc - Md |
| Prefix | 1-240-509 | ||
| Country | Baltimore City | ||
| City | Baltimore | ||
| Carrier | Bandwidth.com Clec, Llc - Md | ||
| 1-240-510 | Prince Georges | Beltsville | Xo Maryland, Llc |
| Prefix | 1-240-510 | ||
| Country | Prince Georges | ||
| City | Beltsville | ||
| Carrier | Xo Maryland, Llc | ||
| 1-240-512 | Baltimore City | Baltimore | Core Communications, Inc. - Md |
| Prefix | 1-240-512 | ||
| Country | Baltimore City | ||
| City | Baltimore | ||
| Carrier | Core Communications, Inc. - Md | ||
| 1-240-513 | Washington | Hagerstown | Sprint Spectrum L.p. - Md |
| Prefix | 1-240-513 | ||
| Country | Washington | ||
| City | Hagerstown | ||
| Carrier | Sprint Spectrum L.p. - Md | ||
| 1-240-514 | Fairfax | McLean | Us Lec Of Maryland, Inc. |
| Prefix | 1-240-514 | ||
| Country | Fairfax | ||
| City | McLean | ||
| Carrier | Us Lec Of Maryland, Inc. | ||
