Phone numbers in Moses Lake, Washington
Moses Lake has 19 phone prefixes in area code 509.
Biggest holders: CenturyLink / Lumen, T-Mobile (including Sprint), AT&T Mobility. This is the local calling area (rate center) where those prefixes were first assigned.
- Mobile carrier 47%
- Local phone company 32%
- Internet / business phone carrier 16%
- Phone company 5%
Every prefix in Moses Lake
Search the first six digits of a number in this list. If it's here, the number started in Moses Lake with the carrier shown. If it isn't, check the Washington page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 509-298 | Tpx Communications | Internet / business phone carrier | 2022 |
| 509-350 | MetroPCS (T-Mobile) | Mobile carrier | – |
| 509-361 | T-Mobile (including Sprint) | Mobile carrier | – |
| 509-431 | Verizon Wireless | Mobile carrier | 2001 |
| 509-512 | T-Mobile (including Sprint) | Mobile carrier | 2020 |
| 509-707 | Localtel | Phone company | 2001 |
| 509-750 | AT&T Mobility | Mobile carrier | – |
| 509-760 | AT&T Mobility | Mobile carrier | – |
| 509-761 | Onvoy | Internet / business phone carrier | – |
| 509-762 | CenturyLink / Lumen | Local phone company | – |
| 509-764 | CenturyLink / Lumen | Local phone company | – |
| 509-765 | CenturyLink / Lumen | Local phone company | – |
| 509-766 | CenturyLink / Lumen | Local phone company | – |
| 509-770 | Inland Cellular | Mobile carrier | – |
| 509-771 | T-Mobile (including Sprint) | Mobile carrier | – |
| 509-793 | CenturyLink / Lumen | Local phone company | – |
| 509-855 | Level 3 (Lumen) | Internet / business phone carrier | 2002 |
| 509-898 | CenturyLink / Lumen | Local phone company | – |
| 509-989 | AT&T Mobility | Mobile carrier | – |
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.