Phone numbers in Westport, Oregon
Westport has 4 phone prefixes in area codes 503, 971.
Biggest holders: CenturyLink / Lumen, Onvoy, Astound Broadband. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 25%
- Internet / business phone carrier 50%
- Phone company 25%
Every prefix in Westport
Search the first six digits of a number in this list. If it's here, the number started in Westport with the carrier shown. If it isn't, check the Oregon page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 503-455 | CenturyLink / Lumen | Local phone company | – |
| 503-966 | Onvoy | Internet / business phone carrier | 2007 |
| 971-296 | Astound Broadband | Internet / business phone carrier | 2017 |
| 971-799 | Invoxio Incorporated | Phone company | 2018 |
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.