Massachusetts
Area codes
1
Rate centres
62
Carriers
51
Prefix blocks
4,834
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.
51 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| VERIZON NEW ENGLAND INC. | 9102 | 749 | 15.5% |
| PAETEC ITEL, LLC | 829J | 566 | 11.7% |
| ONVOY, LLC - MA | 892D | 539 | 11.2% |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 438 | 9.1% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MA | 6387 | 426 | 8.8% |
| BANDWIDTH.COM CLEC, LLC - MA | 990E | 423 | 8.8% |
| OMNIPOINT MIAMI E LICENSE, LLC | 6889 | 346 | 7.2% |
| METROPCS, INC. | 5562 | 235 | 4.9% |
| ONVOY SPECTRUM, LLC | 624H | 156 | 3.2% |
| LEVEL 3 COMMUNICATIONS, LLC - MA | 4018 | 154 | 3.2% |
| COMCAST IP PHONE, LLC | 318J | 119 | 2.5% |
| COMMIO, LLC | 939H | 71 | 1.5% |
| TC SYSTEMS, INC. | 7135 | 70 | 1.4% |
| TELNYX LLC | 073H | 65 | 1.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MA | 7103 | 58 | 1.2% |
| TERRA NOVA TELECOM INC. | 145J | 58 | 1.2% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 57 | 1.2% |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 37 | 0.8% |
| TWC IP ENABLED SERVICES, LLC | 793K | 37 | 0.8% |
| IP HORIZON LLC | 515J | 24 | 0.5% |
| U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | 24 | 0.5% |
| YMAX COMMUNICATIONS CORP. - MA | 316E | 22 | 0.5% |
| TON80 COMMUNICATIONS, LLC | 516J | 20 | 0.4% |
| BOOST SUBSCRIBERCO L.L.C. | 490J | 16 | 0.3% |
| HD CARRIER LLC | 321J | 15 | 0.3% |
62 rate centres. search them all.