| Prefix 1-339-200 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-339-201 | County Middlesex | City Somerville | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-339-202 | County Middlesex | City Cambridge | Carrier Mci Worldcom Communications, Inc. - Ma |
| Prefix 1-339-203 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-204 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-339-205 | County Suffolk | City West Roxbury | Carrier Local Access Llc - Ma |
| Prefix 1-339-206 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-339-207 | County Middlesex | City Cambridge | Carrier Neutral Tandem-massachusetts, Llc - Ma |
| Prefix 1-339-208 | County Middlesex | City Cambridge | Carrier Omnipoint Miami E License, Llc |
| Prefix 1-339-209 | County Middlesex | City Cambridge | Carrier Neutral Tandem-massachusetts, Llc - Ma |
| Prefix 1-339-210 | County Middlesex | City Cambridge | Carrier Broadvox-clec, Llc - Ma |
| Prefix 1-339-212 | County Bristol | City Norton | Carrier Metro Pcs, Inc. |
| Prefix 1-339-213 | County Middlesex | City Cambridge | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-214 | County Middlesex | City Cambridge | Carrier Centurylink Communications Llc |
| Prefix 1-339-215 | County Suffolk | City Boston | Carrier Broadvox-clec, Llc - Ma |
| Prefix 1-339-216 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-217 | County Middlesex | City Chelmsford | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-339-218 | County Plymouth | City Brockton | Carrier Metro Pcs, Inc. |
| Prefix 1-339-219 | County Middlesex | City Cambridge | Carrier Broadwing Communications, Llc - Ma |
| Prefix 1-339-221 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-222 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-223 | County Worcester | City Westborough | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-224 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-225 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-226 | County Middlesex | City Cambridge | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-227 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-230 | County Suffolk | City Boston | Carrier Xo Massachusetts, Inc. |
| Prefix 1-339-234 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-235 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-236 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-237 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-240 | County Suffolk | City Boston | Carrier Telnyx Llc |
| Prefix 1-339-244 | County Suffolk | City Boston | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-339-293 | County Middlesex | City Cambridge | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-339-298 | County Middlesex | City Woburn | Carrier Sprint Spectrum L.p. |
| Prefix 1-339-309 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-339-333 | County Suffolk | City Boston | Carrier Voxbeam Telecommunications Inc. - Ma |
| Prefix 1-339-337 | County Suffolk | City Boston | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-339-364 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-368 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-440 | County Middlesex | City North Billerica | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-444 | County Suffolk | City Boston | Carrier Neutral Tandem-massachusetts, Llc - Ma |
| Prefix 1-339-469 | County Middlesex | City Cambridge | Carrier Comcast Phone Of Massachusetts, Inc. - Ma |
| Prefix 1-339-499 | County Middlesex | City Cambridge | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-339-502 | County Worcester | City Worcester | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-339-526 | County Suffolk | City Boston | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-339-532 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-339-545 | County Suffolk | City Boston | Carrier Bandwidth.com Clec, Llc - Ma |
| Prefix 1-339-600 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-339-613 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-339-645 | County Middlesex | City Winchester | Carrier Verizon New England Inc. |
| Prefix 1-339-666 | County Suffolk | City Boston | Carrier Neutral Tandem-massachusetts, Llc - Ma |
| Prefix 1-339-674 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-339-686 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-339-707 | County Suffolk | City Boston | Carrier Conversent Communications Of Massachusetts, Llc |
| Prefix 1-339-777 | County Middlesex | City Somerville | Carrier Voxbeam Telecommunications Inc. - Ma |
| Prefix 1-339-788 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-793 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-814 | County Middlesex | City Newtonville | Carrier Verizon New England Inc. |
| Prefix 1-339-832 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-883 | County Suffolk | City Charlestown | Carrier Broadview Networks, Inc. - Ma |
| Prefix 1-339-888 | County Suffolk | City Boston | Carrier Neutral Tandem-massachusetts, Llc - Ma |
| Prefix 1-339-900 | County Suffolk | City Boston | Carrier Voxbeam Telecommunications Inc. - Ma |
| Prefix 1-339-927 | County Middlesex | City Cambridge | Carrier New Cingular Wireless Pcs, Llc - Dc |
| Prefix 1-339-933 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-970 | County Middlesex | City Cambridge | Carrier Level 3 Communications, Llc - Ma |
| Prefix 1-339-987 | County Suffolk | City West Roxbury | Carrier Cellco Partnership Dba Verizon Wireless - Ma |
| Prefix 1-339-999 | County Middlesex | City Cambridge | Carrier Voxbeam Telecommunications Inc. - Ma |