Texas
Area codes
1
Rate centres
63
Carriers
39
Prefix blocks
1,502
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.
39 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| ONVOY, LLC - TX | 903C | 260 | 17.3% |
| FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | 254 | 16.9% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 212 | 14.1% |
| IP HORIZON LLC | 515J | 149 | 9.9% |
| T-MOBILE USA, INC. | 6529 | 107 | 7.1% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 67 | 4.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 61 | 4.1% |
| ONVOY SPECTRUM, LLC | 624H | 53 | 3.5% |
| COMMIO, LLC | 939H | 45 | 3.0% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 32 | 2.1% |
| CENTRAL TEXAS TEL. COOP., INC. | 2052 | 30 | 2.0% |
| TELNYX LLC | 073H | 30 | 2.0% |
| FRACTEL, LLC | 965H | 21 | 1.4% |
| COLEMAN COUNTY TEL. COOP., INC. | 2057 | 20 | 1.3% |
| METROPCS, INC. | 5562 | 20 | 1.3% |
| CSC VOICE, LLC | 612K | 18 | 1.2% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7249 | 17 | 1.1% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | 16 | 1.1% |
| YMAX COMMUNICATIONS CORP. - TX | 327E | 13 | 0.9% |
| CEBRIDGE TELECOM TX , L.P. - TX | 318C | 10 | 0.7% |
| NUSO, LLC | 478J | 8 | 0.5% |
| HILL COUNTRY TELECOMMUNICATIONS, LLC - TX | 413F | 7 | 0.5% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7138 | 6 | 0.4% |
| AHOI LLC | 883K | 5 | 0.3% |
| HILL COUNTRY TEL. COOP., INC. | 2086 | 4 | 0.3% |
63 rate centres. search them all.