Southwest Oklahoma Telephone Company
About Southwest Oklahoma Telephone Company
Southwest Oklahoma Telephone Company was a rural ILEC providing DSL broadband and telephone services primarily to residential customers in southwest Oklahoma counties including Harmon, Kiowa, Jackson, Greer, and Tillman. It served small cities like Altus, Frederick, Hobart, and Mangum with coverage reaching about 626 people and 324 households. The company was acquired by Hilliary Communications LLC in December 2021.
- Parent: Hilliary Communications LLC
- Headquarters: Duke, OK
- Services: rural DSL broadband, local telephone, ILEC services
Sources: Hilliary Communications Acquires Two Telecommunications Companies in Southwest Oklahoma · Southwest Oklahoma Telephone Company Overview and Availability · Hilliary Communications · Oklahoma - Hilliary Communications
Headquarters: Duke, OK
Carrier website
hillary.com: opens in a new tab
Block portfolio at a glance
By age
- Recent (0). Last 18 mo
- Medium (0)
- Old (0)
- Undated (41)
Footprint by state
Stronger blue = more blocks issued in that state. ● marks states with activity in the last 18 months.
- Oklahoma OK · 41
Top area codes
Bars show total blocks; red overlay is recent.
Member OCNs
1 OCN roll up under Southwest Oklahoma Telephone Company.
| OCN | Company name on file | HQ | Type | Total | Recent |
|---|---|---|---|---|---|
| 2025 | Southwest Oklahoma Telephone Company | Duke, OK | Incumbent Local Exchange Carrier | 41 | · |