Texas
Area codes
10
Rate centres
305
Carriers
104
Prefix blocks
38,047
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.
104 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| T-MOBILE USA, INC. | 6529 | 5,200 | 13.7% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 5,043 | 13.3% |
| ONVOY, LLC - TX | 903C | 4,854 | 12.8% |
| SOUTHWESTERN BELL | 9533 | 4,313 | 11.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX | 6506 | 2,665 | 7.0% |
| BANDWIDTH.COM CLEC, LLC - TX | 004F | 2,133 | 5.6% |
| METROPCS, INC. | 5562 | 1,886 | 5.0% |
| LEVEL 3 COMMUNICATIONS, LLC - TX | 6114 | 1,655 | 4.3% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 1,144 | 3.0% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - TX | 7148 | 985 | 2.6% |
| FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS | 4344 | 870 | 2.3% |
| PEERLESS NETWORK OF TEXAS, LLC - TX | 177F | 682 | 1.8% |
| ONVOY SPECTRUM, LLC | 624H | 624 | 1.6% |
| TWC IP ENABLED SERVICES, LLC | 793K | 498 | 1.3% |
| LEVEL 3 OF TELECOM OF TEXAS, LLC - TX | 7516 | 407 | 1.1% |
| SOUTHWESTERN BELL TELEPHONE COMPANY - TX | 7726 | 330 | 0.9% |
| BRIGHTSPEED OF EASTERN TEXAS, INC. | 2084 | 317 | 0.8% |
| IP HORIZON LLC | 515J | 298 | 0.8% |
| COMMIO, LLC | 939H | 294 | 0.8% |
| PAETEC ITEL, LLC | 829J | 238 | 0.6% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 225 | 0.6% |
| GRANDE COMMUNICATIONS NETWORKS, INC. - TX | 7670 | 225 | 0.6% |
| TERRA NOVA TELECOM INC. | 145J | 220 | 0.6% |
| AT&T CORP. | 516C | 215 | 0.6% |
| FRACTEL, LLC | 965H | 211 | 0.6% |
305 rate centres. search them all.