Massachusetts
Area codes
8
Rate centres
203
Carriers
72
Prefix blocks
33,349
A Local Access and Transport Area is the region a call is routed within before it becomes long-haul. The boundaries were drawn when the Bell System was broken up in 1984: a local carrier could carry a call inside its LATA, and a long-distance carrier had to take it across one. The division still shapes how calls are routed and rated today, which is why every prefix block on this site carries a LATA.
72 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| VERIZON NEW ENGLAND INC. | 9102 | 4,047 | 12.1% |
| ONVOY, LLC - MA | 892D | 3,814 | 11.4% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | 3,550 | 10.6% |
| OMNIPOINT MIAMI E LICENSE, LLC | 6889 | 3,071 | 9.2% |
| PAETEC ITEL, LLC | 829J | 2,339 | 7.0% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 2,131 | 6.4% |
| METROPCS, INC. | 5562 | 2,033 | 6.1% |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 1,869 | 5.6% |
| BANDWIDTH.COM CLEC, LLC - MA | 990E | 1,832 | 5.5% |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 1,610 | 4.8% |
| COMCAST IP PHONE, LLC | 318J | 1,170 | 3.5% |
| TC SYSTEMS, INC. | 7135 | 859 | 2.6% |
| ONVOY SPECTRUM, LLC | 624H | 835 | 2.5% |
| PEERLESS NETWORK OF MASSACHUSETTS, LLC - MA | 268F | 810 | 2.4% |
| IP HORIZON LLC | 515J | 470 | 1.4% |
| TERRA NOVA TELECOM INC. | 145J | 461 | 1.4% |
| HD CARRIER LLC | 321J | 283 | 0.8% |
| TELNYX LLC | 073H | 269 | 0.8% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 212 | 0.6% |
| RCN TELECOM SERVICES, INC. - MA | 7619 | 207 | 0.6% |
| YMAX COMMUNICATIONS CORP. - MA | 316E | 202 | 0.6% |
| COMMIO, LLC | 939H | 186 | 0.6% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | 186 | 0.6% |
| TON80 COMMUNICATIONS, LLC | 516J | 140 | 0.4% |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 92 | 0.3% |
203 rate centres. search them all.