Phone numbers in Norman, Oklahoma
Norman has 27 phone prefixes in area codes 405, 572.
Biggest holders: AT&T (local phone), Comcast, Onvoy. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 4%
- Local phone company 48%
- Internet / business phone carrier 44%
- Phone company 4%
Every prefix in Norman
Search the first six digits of a number in this list. If it's here, the number started in Norman with the carrier shown. If it isn't, check the Oklahoma page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 405-217 | AT&T (local phone) | Local phone company | – |
| 405-253 | Teleport Communications America Ok | Internet / business phone carrier | – |
| 405-292 | AT&T (local phone) | Local phone company | – |
| 405-307 | AT&T (local phone) | Local phone company | – |
| 405-310 | Comcast | Internet / business phone carrier | – |
| 405-321 | AT&T (local phone) | Local phone company | – |
| 405-322 | AT&T (local phone) | Local phone company | – |
| 405-325 | AT&T (local phone) | Local phone company | – |
| 405-329 | AT&T (local phone) | Local phone company | – |
| 405-360 | AT&T (local phone) | Local phone company | – |
| 405-364 | AT&T (local phone) | Local phone company | – |
| 405-366 | AT&T (local phone) | Local phone company | – |
| 405-447 | AT&T (local phone) | Local phone company | – |
| 405-515 | Teleport Communications America Ok | Internet / business phone carrier | 2007 |
| 405-561 | MetroPCS (T-Mobile) | Mobile carrier | 2014 |
| 405-573 | AT&T (local phone) | Local phone company | – |
| 405-579 | AT&T (local phone) | Local phone company | – |
| 405-701 | Comcast | Internet / business phone carrier | – |
| 405-801 | Comcast | Internet / business phone carrier | – |
| 405-809 | Onvoy | Internet / business phone carrier | – |
| 405-857 | Comcast | Internet / business phone carrier | 2017 |
| 405-914 | Onvoy | Internet / business phone carrier | 2020 |
| 405-928 | Windstream (PAETEC) | Internet / business phone carrier | – |
| 405-957 | Stratus Networks | Phone company | 2021 |
| 572-224 | Onvoy | Internet / business phone carrier | 2023 |
| 572-225 | Bandwidth | Internet / business phone carrier | 2023 |
| 572-229 | Commio | Internet / business phone carrier | 2024 |
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.