Area code 650 — California
Area code 650 is in California and serves Daly City, South San Francisco, Palo Alto, Redwood City. Time zone, overlays, counties and ZIP codes.
| Location | California (Daly City, South San Francisco, Palo Alto, Redwood City, Menlo Park, Mountain View, San Mateo, Santa Clara) |
|---|---|
| Main places | Daly City, South San Francisco, Palo Alto, Redwood City, Menlo Park, Mountain View, San Mateo, Santa Clara |
| State | California |
| Status | In service · since 1997 |
| Time zone | Pacific · |
| Local dialing | 1+10D |
History
- Split of 415
Counties (approximate)
Alameda CountyCity and County of San FranciscoMarin CountySan Francisco CountySan MateoSan Mateo CountySanta ClaraSanta Clara CountySanta Cruz County
ZIP codes in area code 650
Approximate: area code boundaries follow telephone rate centers, not ZIP codes.
94002 Belmont94005 Brisbane94010 Burlingame94011 Burlingame94014 Daly City94015 Daly City94016 Daly City94017 Daly City94018 El Granada94019 Half Moon Bay94020 La Honda94021 Loma Mar94022 Los Altos94023 Los Altos94024 Los Altos94025 Menlo Park94026 Menlo Park94027 Atherton94028 Portola Valley94030 Millbrae94035 Mountain View94037 Montara94038 Moss Beach94039 Mountain View94040 Mountain View94041 Mountain View94042 Mountain View94043 Mountain View94044 Pacifica94060 Pescadero94061 Redwood City94062 Redwood City94063 Redwood City94064 Redwood City94065 Redwood City94066 San Bruno94070 San Carlos94074 San Gregorio94080 South San Francisco94083 South San Francisco
Format a 650 number
US numbers are written as (650) 555-0123 or 650-555-0123. From outside the US, dial +1 650 555 0123.
Is a call from 650 a scam?
An area code only tells you where a number was assigned. Caller ID can be faked (“spoofed”), so do not trust a call just because the area code looks local. Never share codes or payment details with unexpected callers.
Sources: NANPA via NumberResearch.org (CC BY 4.0); place names and history from Wikipedia (CC BY-SA 4.0). See data sources.