Michigan
Area codes
1
Rate centres
134
Carriers
61
Prefix blocks
4,974
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.
61 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| ONVOY, LLCV - MI | 543C | 720 | 14.5% |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI | 6003 | 606 | 12.2% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 558 | 11.2% |
| OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC | 2964 | 415 | 8.3% |
| FRONTIER NORTH, INC. - MI | 0695 | 348 | 7.0% |
| MICHIGAN BELL TEL CO | 9323 | 319 | 6.4% |
| LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | 219 | 4.4% |
| CHARTER IP ENABLED SERVICES, LLC | 792K | 160 | 3.2% |
| BANDWIDTH.COM CLEC, LLC - MI | 991E | 152 | 3.1% |
| ONVOY SPECTRUM, LLC | 624H | 131 | 2.6% |
| TERRA NOVA TELECOM INC. | 145J | 112 | 2.3% |
| PAETEC ITEL, LLC | 829J | 94 | 1.9% |
| METROPCS, INC. | 5562 | 86 | 1.7% |
| CENTURYLINK COMMUNICATIONS, LLC | 508J | 84 | 1.7% |
| 123.NET, LLC | 2550 | 81 | 1.6% |
| TELNET WORLDWIDE, INC. | 817J | 79 | 1.6% |
| BRIGHTSPEED OF MICHIGAN, LLC | 0702 | 77 | 1.5% |
| PEERLESS NETWORK OF MICHIGAN, LLC - MI | 933G | 76 | 1.5% |
| TON80 COMMUNICATIONS, LLC | 516J | 60 | 1.2% |
| TELEPORT COMMUNICATIONS AMERICA, LLC - MI | 770E | 58 | 1.2% |
| WINN TELEPHONE COMPANY DBA WINN TELECOM - MI | 0127 | 58 | 1.2% |
| COMMIO, LLC | 939H | 46 | 0.9% |
| CLEAR RATE COMMUNICATIONS, LLC | 046L | 42 | 0.8% |
| DAYSTARR LLC DBA DAYSTARR COMMUNICATIONS | 993L | 41 | 0.8% |
| AT&T CORP. | 516C | 38 | 0.8% |
134 rate centres. search them all.