Phone numbers in Moss Beach, California
Moss Beach has 7 phone prefixes in area code 650.
Biggest holders: MCImetro (Verizon Business), AT&T (local phone), Tpx Communications. This is the local calling area (rate center) where those prefixes were first assigned.
- Local phone company 29%
- Internet / business phone carrier 71%
Every prefix in Moss Beach
Search the first six digits of a number in this list. If it's here, the number started in Moss Beach with the carrier shown. If it isn't, check the California page or look the number up.
| Prefix | Carrier | Type | Assigned |
|---|---|---|---|
| 650-263 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 650-535 | Tpx Communications | Internet / business phone carrier | – |
| 650-563 | AT&T (local phone) | Local phone company | – |
| 650-718 | Teleport Communications America | Internet / business phone carrier | – |
| 650-719 | MCImetro (Verizon Business) | Internet / business phone carrier | – |
| 650-728 | AT&T (local phone) | Local phone company | – |
| 650-897 | Level 3 (Lumen) | Internet / business phone 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.