Connecticut
Area codes
4
Rate centres
87
Carriers
47
Prefix blocks
15,593
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.
47 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| SOUTHERN NEW ENGLAND TELCO DBA FRONTIER COMM OF CT | 9147 | 2,712 | 17.4% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CT | 6388 | 1,893 | 12.1% |
| ONVOY, LLC - CT | 639C | 1,777 | 11.4% |
| OMNIPOINT COMMUNICATIONS, INC. - CT | 6624 | 1,428 | 9.2% |
| NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | 1,151 | 7.4% |
| BANDWIDTH.COM CLEC, LLC - CT | 199F | 915 | 5.9% |
| PAETEC ITEL, LLC | 829J | 803 | 5.1% |
| METROPCS, INC. | 5562 | 802 | 5.1% |
| LEVEL 3 COMMUNICATIONS, LLC - CT | 4800 | 574 | 3.7% |
| COMCAST IP PHONE, LLC | 318J | 457 | 2.9% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - CT | 7143 | 454 | 2.9% |
| PEERLESS NETWORK OF CONNECTICUT, LLC - CT | 539F | 373 | 2.4% |
| ONVOY SPECTRUM, LLC | 624H | 355 | 2.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CT | 7230 | 313 | 2.0% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 254 | 1.6% |
| CABLEVISION LIGHTPATH, INC. - CT | 4950 | 177 | 1.1% |
| CSC VOICE, LLC | 612K | 159 | 1.0% |
| TELNYX LLC | 073H | 124 | 0.8% |
| TON80 COMMUNICATIONS, LLC | 516J | 106 | 0.7% |
| IP HORIZON LLC | 515J | 86 | 0.6% |
| TERRA NOVA TELECOM INC. | 145J | 86 | 0.6% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 84 | 0.5% |
| EON TELECOM, INC. | 839J | 66 | 0.4% |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 59 | 0.4% |
| BOOST SUBSCRIBERCO L.L.C. | 490J | 47 | 0.3% |
87 rate centres. search them all.