Illinois, Indiana
Area codes
6
Rate centres
157
Carriers
80
Prefix blocks
12,403
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.
80 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| INDIANA BELL TEL CO INC | 9325 | 1,792 | 14.4% |
| ONVOY, LLC - IN | 097D | 1,783 | 14.4% |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | 1,447 | 11.7% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 1,275 | 10.3% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - IN | 6725 | 1,026 | 8.3% |
| BANDWIDTH.COM CLEC, LLC - IN | 105F | 792 | 6.4% |
| LEVEL 3 COMMUNICATIONS, LLC - IN | 4803 | 546 | 4.4% |
| COMCAST IP PHONE, LLC | 318J | 347 | 2.8% |
| PAETEC ITEL, LLC | 829J | 312 | 2.5% |
| METROPCS, INC. | 5562 | 301 | 2.4% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - IN | 7314 | 287 | 2.3% |
| ONVOY SPECTRUM, LLC | 624H | 273 | 2.2% |
| PEERLESS NETWORK OF INDIANA, LLC - IN | 279F | 247 | 2.0% |
| FRONTIER NORTH, INC.. - IN | 0772 | 221 | 1.8% |
| LEVEL 3 TELECOM OF INDIANA, LP - IN | 7060 | 175 | 1.4% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - IN | 7440 | 133 | 1.1% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 122 | 1.0% |
| BHN IP ENABLED SERVICES, LLC | 045L | 116 | 0.9% |
| AT&T CORP. | 516C | 110 | 0.9% |
| TELNYX LLC | 073H | 108 | 0.9% |
| TON80 COMMUNICATIONS, LLC | 516J | 100 | 0.8% |
| BRIGHTSPEED OF INDIANA, LLC | 0832 | 97 | 0.8% |
| TERRA NOVA TELECOM INC. | 145J | 88 | 0.7% |
| IP HORIZON LLC | 515J | 78 | 0.6% |
| FRACTEL, LLC | 965H | 67 | 0.5% |
157 rate centres. search them all.