North Dakota Telephone Company
Holding: TPC Inc
About North Dakota Telephone Company
North Dakota Telephone Company (NDTC) is an independent telephone company providing broadband internet, landline telephone, and TV services primarily to residential and business customers in northeastern North Dakota. It serves over 11,000 customers, including 7,623 residential and 1,347 business, mainly in areas like Devils Lake and Rugby. As a small rural ILEC owned by a consortium of cooperatives, it operates in a niche regional market with fiber-to-the-premise deployments offering speeds up to 10 Gbps.
- Parent: United Telephone Mutual Aid Cooperative, Dakota Central Rural Telephone Cooperative, and Polar Communications
- Founded: 1993
- Headquarters: Devils Lake, ND
- Services: rural fiber broadband, ILEC landline, bundled TV/phone
Sources: About NDTC - Your Local Broadband, TV, & Phone Provider · North Dakota Telephone Company | BAND · NDTC: Your local Broadband Internet, Phone, and TV Provider
Headquarters: Devils Lake, ND

Block portfolio at a glance
By age
- Recent (0). Last 18 mo
- Medium (0)
- Old (0)
- Undated (27)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- North Dakota ND · 27
Top area codes
Bars show total blocks; red overlay is recent.
Member OCNs
1 OCN roll up under North Dakota Telephone Company.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 1447 | North Dakota Telephone Company | Devils Lake, ND | Incumbent Local Exchange Carrier | 27 | · |
