Watch Area Code
Lookup Code
North American Area CodePacific Time Zone

Area Code 650 Location & Details

State / Region: California • Country: United States

Major Cities Covered: San Francisco, San Mateo, Daly City, Redwood City, Palo Alto, South San Francisco, San Bruno, Pacifica, Menlo Park, Foster City

Standard Dial Format
+1 (650) XXX-XXXX
Country Code: +1 (NANP Format)
What State is Area Code 650?
CaliforniaState Hub →
Country Territory
United States
650 Area Code Time Zone
Pacific
650 Overlay Codes
No Overlays

Area Code 650 Geographic Map

Interactive location bounds and coverage area for California (Pacific Timezone)

Lat: 37.54° • Lng: -122.33°
📍 Geographic Center: CaliforniaMap data © OpenStreetMap contributors

Where is Area Code 650 Located?

Telephone area code 650 is assigned to California in United States. It serves cities and metropolitan communities including San Francisco, San Mateo, Daly City, Redwood City, Palo Alto, South San Francisco, San Bruno, Pacifica, Menlo Park, Foster City.

Historical Context & Area Code Overlay Information:650 serves California (United States).

For local and long-distance calls within area code 650, standard 10-digit dialing (650) XXX-XXXX applies.

Who Called Me from Area Code 650?

Received an unknown call, missed call, or text scam from area code 650? Here is how to trace who is calling from 650 area code and verify unknown numbers safely:

1.
Identify Missed Calls & Voicemails:

Legitimate contacts usually leave a detailed voicemail or caller ID record.

2.
Watch Out for Neighbor Spoofing:

Robocallers often fake incoming caller ID numbers using your local 650 prefix to boost pick-up rates.

3.
Reverse Phone Lookup Area Code 650:

Search public white-pages or use caller intelligence guides before returning unfamiliar calls.

Learn How Reverse Phone Lookups Work→

How to Call Area Code 650 & Dialing Format

When placing a phone call to a number in area code 650, follow the correct dialing format depending on your calling location:

  • Calling from inside the US / Canada (+1): Dial 1 + (650) + 7-digit number.
  • Calling from an international location outside +1: Dial your country's international exit code (e.g. 011 in US or + on mobile) + 1 + 650 + 7-digit number.
  • Do I need to dial area code 650 for local calls? Yes, 10-digit dialing (area code + line number) is mandatory across North American telephone networks.

Top Cities & Municipalities Served in Area Code 650

Urban centers, census places, and communities within the +1-650 calling area

24 Major Cities Listed
City NameCountyPopulation% of 650 Pop
San FranciscoSan Francisco County826,07951.1%
San MateoSan Mateo County103,3376.4%
Daly CitySan Mateo County101,2616.3%
Redwood CitySan Mateo County82,1785.1%
Palo AltoSan Mateo County67,6094.2%
South San FranciscoSan Mateo County64,9414.0%
San BrunoSan Mateo County42,3052.6%
PacificaSan Mateo County36,8902.3%
Menlo ParkSan Mateo County32,7132.0%
Foster CitySan Mateo County32,4112.0%
BurlingameSan Mateo County31,9292.0%
Los AltosSan Mateo County30,9651.9%
San CarlosSan Mateo County29,2611.8%
East Palo AltoSan Mateo County28,8721.8%
BelmontSan Mateo County28,7521.8%
MillbraeSan Mateo County22,8691.4%
Half Moon BaySan Mateo County11,2870.7%
HillsboroughSan Mateo County11,2060.7%
Los Altos HillsSan Mateo County8,4190.5%
AthertonSan Mateo County6,9600.4%

Counties Covered by Area Code 650

Geographic county distribution and population coverage across California

County NameTotal Population% of 650 Area% of County
San Francisco County820,94551.1%100%
San Mateo County740,62748.9%100%

☎️Area Code 650 Exchange Prefixes & Carriers

Showing 50 of 727 central office 3-digit prefixes and assigned telecom carriers

68% Landline23% Wireless9% VoIP
PrefixLine UsageRate CenterAssigned CarrierAssign Date
(650) 200-💻VoIPSAN MATEOTWILIO INTERNATIONAL, INC.N/A
(650) 201-📱WirelessSSNFRNCSCOT-MOBILE USA, INC.N/A
(650) 202-📞LandlineSAN MATEOUTILITY TELECOM GROUP, LLC - CAN/A
(650) 203-💻VoIPMT VIEWBANDWIDTH.COM CLEC, LLC - CA12/01/2015
(650) 204-📞LandlineMILLBRAELEVEL 3 TELECOM OF CALIFORNIA, LP - CAN/A
(650) 205-📞LandlineSSNFRNCSCOSPOK, INC.N/A
(650) 206-📞LandlineWOODSIDEU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(650) 207-📱WirelessREDWOOD CYCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(650) 208-📱WirelessREDWOOD CYCELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAN/A
(650) 209-📞LandlineLOS ALTOSU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(650) 210-📞LandlineMT VIEWPACIFIC BELLN/A
(650) 211-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(650) 212-📞LandlineSAN MATEOPACIFIC BELLN/A
(650) 213-📞LandlinePALO ALTOPACIFIC BELLN/A
(650) 214-📞LandlineMT VIEWMCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA02/15/2007
(650) 215-📞LandlineMT VIEWLEVEL 3 COMMUNICATIONS, LLC - CAN/A
(650) 216-📞LandlineREDWOOD CYPACIFIC BELLN/A
(650) 217-📞LandlineSAN MATEOSPOK, INC.N/A
(650) 218-📱WirelessSAN MATEOT-MOBILE USA, INC.N/A
(650) 219-📱WirelessSSNFRNCSCOT-MOBILE USA, INC.N/A
(650) 220-📱WirelessMT VIEWT-MOBILE USA, INC.10/10/2023
(650) 221-📞LandlineSSNFRNCSCOSHELCOMM09/12/2024
(650) 222-📱WirelessSAN MATEOT-MOBILE USA, INC.N/A
(650) 223-📞LandlinePALO ALTOU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(650) 224-📱WirelessMT VIEWNEW CINGULAR WIRELESS PCS, LLCN/A
(650) 225-📞LandlineSSNFRNCSCOPACIFIC BELLN/A
(650) 226-📞LandlineSNCRL-BLMTMCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAN/A
(650) 227-📞LandlineSAN MATEOMCIMETRO ACCESS TRANSMISSION SERVICES LLCN/A
(650) 228-📞LandlineSSNFRNCSCOMCIMETRO ACCESS TRANSMISSION SERVICES LLCN/A
(650) 229-📞LandlineLOS ALTOSMCIMETRO ACCESS TRANSMISSION SERVICES LLCN/A
(650) 230-📞LandlineMT VIEWMCIMETRO ACCESS TRANSMISSION SERVICES LLCN/A
(650) 231-📞LandlineMILLBRAEMCIMETRO ACCESS TRANSMISSION SERVICES LLCN/A
(650) 232-📞LandlineSNCRL-BLMTMCIMETRO ACCESS TRANSMISSION SERVICES LLCN/A
(650) 233-📞LandlinePALO ALTOPACIFIC BELLN/A
(650) 234-📞LandlinePALO ALTOPACIFIC BELLN/A
(650) 235-📞LandlineSAN MATEOMCIMETRO ACCESS TRANSMISSION SERVICES LLCN/A
(650) 236-📞LandlinePALO ALTOPACIFIC BELLN/A
(650) 237-📞LandlineMT VIEWPACIFIC BELLN/A
(650) 238-📞LandlineSSNFRNCSCOMCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAN/A
(650) 239-💻VoIPMILLBRAEONVOY, LLC - CAN/A
(650) 240-💻VoIPSAN MATEOONVOY, LLC - CAN/A
(650) 241-📞LandlineREDWOOD CYLEVEL 3 COMMUNICATIONS, LLC - CAN/A
(650) 242-📞LandlineSAN MATEOLEVEL 3 COMMUNICATIONS, LLC - CAN/A
(650) 243-📞LandlineSSNFRNCSCOU.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSN/A
(650) 244-📞LandlineSSNFRNCSCOPACIFIC BELLN/A
(650) 245-📱WirelessSAN MATEONEW CINGULAR WIRELESS PCS, LLCN/A
(650) 246-📞LandlineSSNFRNCSCOPACIFIC BELLN/A
(650) 247-📞LandlineWOODSIDECOMMIO, LLC12/29/2023
(650) 248-📱WirelessPALO ALTOT-MOBILE USA, INC.N/A
(650) 249-💻VoIPREDWOOD CYONVOY, LLC - CAN/A

Frequently Asked Questions about Area Code 650

Where is area code 650 located?

Area code 650 is located in California (United States), serving cities like San Francisco, San Mateo, Daly City, Redwood City, Palo Alto, South San Francisco, San Bruno, Pacifica, Menlo Park, Foster City.

What timezone is area code 650?

Area code 650 operates in the Pacific timezone.

What state is area code 650?

Area code 650 is assigned to the state / telecom territory of California.

Is area code 650 a scam or dangerous?

Area code 650 is an official geographic area code for California. However, beware of robocaller spoofing.

California State Area Codes

View complete directory of telephone area codes assigned to California.

Explore California Directory

Get a 650 Business Phone Number

How to acquire a virtual phone number or business line with area code 650 for local customer trust in California.

Get 650 Business Number
🛡️ Scam & Safety Directory

Check high-risk international callback scam area codes and robocall warning databases.

Scam Area Codes 2026

Overlay & Nearby Area Codes for California

Explore neighboring telecom prefixes sharing geographical boundaries with area code 650.

209
Pacific
Area Code 209
Stockton, Modesto, Tracy, Merced, Manteca, Turlock, Lodi, Los Banos, Ceres, Lathrop
213
Pacific
Area Code 213
Los Angeles, Montebello, Commerce, Vernon
279
Pacific
Area Code 279
Sacramento, Elk Grove, Roseville, Folsom, Rancho Cordova, Citrus Heights, Rocklin, Lincoln, West Sacramento, Loomis
310
Pacific
Area Code 310
Torrance, Inglewood, Carson, Compton, Santa Monica, South Gate, Hawthorne, Redondo Beach, Lynwood, Gardena
323
Pacific
Area Code 323
Los Angeles, South Gate, Montebello, Huntington Park, Bell Gardens, Commerce, Vernon
341
Pacific
Area Code 341
Oakland, Fremont, Hayward, Berkeley, Richmond, San Leandro, Milpitas, Alameda, Union City, Newark