Phone numbers in Clackamas, Oregon
Clackamas has 69 phone prefixes in area codes 503, 971.
Biggest holders: CenturyLink / Lumen, Allstream, T-Mobile (including Sprint). This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 14%
- Local phone company 36%
- Internet / business phone carrier 48%
- Phone company 1%
Every prefix in Clackamas
Search the first six digits of a number in this list. If it's here, the number started in Clackamas with the carrier shown. If it isn't, check the Oregon page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 503-210 | Allstream | Internet / business phone carrier | – |
| 503-212 | Allstream | Internet / business phone carrier | – |
| 503-303 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 503-305 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 503-342 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 503-343 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 503-344 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 503-353 | CenturyLink / Lumen | Local phone company | – |
| 503-387 | Teleport Communications America | Internet / business phone carrier | – |
| 503-406 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 503-451 | Teleport Communications America | Internet / business phone carrier | – |
| 503-462 | Teleport Communications America | Internet / business phone carrier | – |
| 503-479 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 503-496 | Allstream | Internet / business phone carrier | – |
| 503-513 | CenturyLink / Lumen | Local phone company | – |
| 503-518 | Beaver Creek Cooperative Telephone | Local phone company | – |
| 503-534 | CenturyLink / Lumen | Local phone company | – |
| 503-557 | CenturyLink / Lumen | Local phone company | – |
| 503-571 | CenturyLink / Lumen | Local phone company | – |
| 503-594 | Allstream | Internet / business phone carrier | – |
| 503-607 | Allstream | Internet / business phone carrier | – |
| 503-635 | CenturyLink / Lumen | Local phone company | – |
| 503-636 | CenturyLink / Lumen | Local phone company | – |
| 503-650 | CenturyLink / Lumen | Local phone company | – |
| 503-652 | CenturyLink / Lumen | Local phone company | – |
| 503-653 | CenturyLink / Lumen | Local phone company | – |
| 503-654 | CenturyLink / Lumen | Local phone company | – |
| 503-655 | CenturyLink / Lumen | Local phone company | – |
| 503-656 | CenturyLink / Lumen | Local phone company | – |
| 503-657 | CenturyLink / Lumen | Local phone company | – |
| 503-659 | CenturyLink / Lumen | Local phone company | – |
| 503-675 | CenturyLink / Lumen | Local phone company | – |
| 503-683 | Teleport Communications America | Internet / business phone carrier | – |
| 503-697 | CenturyLink / Lumen | Local phone company | – |
| 503-699 | CenturyLink / Lumen | Local phone company | – |
| 503-722 | CenturyLink / Lumen | Local phone company | – |
| 503-723 | CenturyLink / Lumen | Local phone company | – |
| 503-742 | CenturyLink / Lumen | Local phone company | – |
| 503-744 | Onvoy | Internet / business phone carrier | – |
| 503-765 | Teleport Communications America | Internet / business phone carrier | – |
| 503-785 | CenturyLink / Lumen | Local phone company | – |
| 503-786 | CenturyLink / Lumen | Local phone company | – |
| 503-794 | CenturyLink / Lumen | Local phone company | – |
| 503-850 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 503-882 | Level 3 (Lumen) | Internet / business phone carrier | – |
| 503-905 | Allstream | Internet / business phone carrier | – |
| 503-908 | Comcast | Internet / business phone carrier | – |
| 503-919 | AT&T Mobility | Mobile carrier | – |
| 503-974 | Comcast | Internet / business phone carrier | – |
| 971-204 | Allstream | Internet / business phone carrier | – |
| 971-206 | Allstream | Internet / business phone carrier | – |
| 971-233 | Windstream (PAETEC) | Internet / business phone carrier | 2001 |
| 971-236 | Allstream | Internet / business phone carrier | 2001 |
| 971-335 | T-Mobile (including Sprint) | Mobile carrier | 2018 |
| 971-353 | T-Mobile (including Sprint) | Mobile carrier | 2019 |
| 971-356 | AT&T Mobility | Mobile carrier | 2019 |
| 971-377 | Onvoy | Internet / business phone carrier | 2017 |
| 971-381 | Vonage America | Internet / business phone carrier | 2020 |
| 971-396 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 971-419 | T-Mobile (including Sprint) | Mobile carrier | 2021 |
| 971-447 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 971-459 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 971-471 | Onvoy | Internet / business phone carrier | 2022 |
| 971-476 | T-Mobile (including Sprint) | Mobile carrier | 2023 |
| 971-486 | T-Mobile (including Sprint) | Mobile carrier | 2024 |
| 971-529 | Fractel | Internet / business phone carrier | 2021 |
| 971-535 | Onvoy | Internet / business phone carrier | 2026 |
| 971-825 | TON80 Communications | Internet / business phone carrier | 2022 |
| 971-925 | XO Oregon | Phone company | – |
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.