Montana, North Dakota, South Dakota
Area codes
3
Rate centres
163
Carriers
48
Prefix blocks
1,436
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.
48 carriers hold blocks here. The 25 largest are shown.
| Carrier | OCN | Blocks | Share |
|---|---|---|---|
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - ND | 6568 | 382 | 26.6% |
| NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | 189 | 13.2% |
| MIDCONTINENT COMMUNICATIONS - ND | 3065 | 113 | 7.9% |
| ONVOY, LLC - ND | 452F | 108 | 7.5% |
| SRT COMMUNICATIONS, INC. | 3303 | 90 | 6.3% |
| RESERVATION TEL. COOP. | 1632 | 62 | 4.3% |
| LEVEL 3 COMMUNICATIONS, LLC - ND | 8054 | 56 | 3.9% |
| QWEST CORPORATION | 9631 | 40 | 2.8% |
| HD CARRIER LLC | 321J | 38 | 2.6% |
| AERIAL COMMUNICATIONS, INC. | 6701 | 35 | 2.4% |
| CONSOLIDATED TELCOM | 1607 | 31 | 2.2% |
| TERRA NOVA TELECOM INC. | 145J | 31 | 2.2% |
| TURTLE MOUNTAIN COMMUN., INC. | 1678 | 25 | 1.7% |
| WEST RIVER TELECOMMUNICATIONS COOP. - ND | 4413 | 24 | 1.7% |
| TELNYX LLC | 073H | 23 | 1.6% |
| BEK COMMUNICATIONS COOPERATIVE | 1604 | 18 | 1.3% |
| NCC ENTERPRISES | 587A | 18 | 1.3% |
| NORTHWEST COMMUNICATIONS COOP. | 1625 | 17 | 1.2% |
| TELEPORT COMMUNICATIONS AMERICA - ND - LLC | 772G | 13 | 0.9% |
| COMMIO, LLC | 939H | 12 | 0.8% |
| ONVOY SPECTRUM, LLC | 624H | 12 | 0.8% |
| LTE WIRELESS, INC. - ND | 410J | 11 | 0.8% |
| NORTH DAKOTA TELEPHONE CO. | 1447 | 11 | 0.8% |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | 8 | 0.6% |
| DICKEY RURAL TEL. COOP. | 1611 | 6 | 0.4% |
163 rate centres. search them all.