Phone numbers in Collinsville, Oklahoma
Collinsville has 5 phone prefixes in area codes 539, 918.
Biggest holders: Onvoy, AT&T (local phone), AT&T Enterprises. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 20%
- Internet / business phone carrier 60%
- Phone company 20%
Every prefix in Collinsville
Search the first six digits of a number in this list. If it's here, the number started in Collinsville with the carrier shown. If it isn't, check the Oklahoma page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 539-379 | Onvoy | Internet / business phone carrier | 2023 |
| 918-205 | Onvoy | Internet / business phone carrier | – |
| 918-371 | AT&T (local phone) | Local phone company | – |
| 918-553 | AT&T Enterprises | Phone company | 2004 |
| 918-602 | Level 3 (Lumen) | Internet / business phone carrier | 2004 |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.