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650 Area Code 🌍☎️

Area Code Profile · California

The 650 area code is located in the state of California and covers 39 cities, serving a total population of approximately 953,384. Major cities covered by the 650 area code include Daly City, San Mateo, Redwood City, Mountain View, Palo Alto (which represents the most populated areas). There are a total of 700 telephone prefix exchanges in this area code, which support an estimated 7,000,000 active or assignable phone numbers. These prefix lines are operated by 37 distinct carriers, with San Mateo as the primary rate center location.

Pacific Time39 Cities700 Prefixes

Reverse Phone Lookup in San Mateo, California

Unmask unknown callers, verify telemarketing reports, and view detailed owner information for any phone number beginning with area code (650).

How it works

1

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Provide any 10-digit phone number starting with the (650) area code.

2

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Our system scans public registries, carrier mappings, and spam reports.

3

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Access location details, line type, carrier, owner information, and safety levels.

Neighborhood Demographics

Calculated demographics and census summary estimations for area code 650.

45.8 y/oMedian Age
$88,800Median Income
$373,000Median Home Value
953,384Total Population

Telemarketer Complaints

Most recent complaints and comments for phone numbers beginning with 650.

Did you receive an unwanted call from a (650) phone number?

Help the community identify spammers by filing a comment.

(650) 885-9590May 20, 2026Scam / Fraud
Robocall claiming to be from the IRS. Stated that my Social Security Number has been flagged and suspended. Asked to press 1 to speak with an agent. Obvious phishing scam.
See Details
(650) 898-9607May 19, 2026Robocall
Received a silent call. When I answered, there was just dead air for 5 seconds before it automatically disconnected. Likely an automated system testing for active numbers.
See Details
(650) 511-9624May 18, 2026Telemarketer
Offered an unsolicited quote for local roofing and home energy services. They knew my area code but when I asked how they got my number, they hung up immediately.
See Details
(650) 524-9641May 17, 2026Debt Collector
Automated voice caller looking for someone named David. Keeps calling repeatedly asking to settle a debt. I have had this number for years and don't know David.
See Details
(650) 537-9658May 16, 2026Political
Pre-recorded campaign call promoting a local candidate. Did not respect my request to be placed on the Do Not Call list.
See Details

Cities in the 650 Area Code

The most populous cities in area code 650 are: Daly City (101,123), San Mateo (97,207), Redwood City (76,815), Mountain View (74,066), and Palo Alto (64,403).

Other cities in the 650 area code include:

South San Francisco, Cupertino, San Bruno, Pacifica, Menlo Park, Foster City, Los Altos, Burlingame, San Carlos, East Palo Alto, Belmont, Millbrae, North Fair Oaks, Stanford, Half Moon Bay, Hillsborough, Los Altos Hills, Atherton, El Granada, Woodside, Portola Valley, Brisbane, Emerald Lake Hills, Broadmoor, Highlands-Baywood Park.

CityPopulation% in Area Code
Daly City101,12384%
San Mateo97,207100%
Redwood City76,815100%
Mountain View74,06699%
Palo Alto64,40391%
South San Francisco63,632100%
Cupertino58,3025%
San Bruno41,114100%
Pacifica37,234100%
Menlo Park32,026100%
Foster City30,567100%
Los Altos28,97699%
Burlingame28,806100%
San Carlos28,406100%
East Palo Alto28,155100%
Belmont25,835100%
Millbrae21,532100%
North Fair Oaks14,687100%
Stanford13,809100%
Half Moon Bay11,324100%

Showing top 20 of 39 cities.

What Time Zone is Area Code 650?

Pacific Time Zone

Abbreviation: PT · UTC Offset: UTC-8

The 650 area code lies within the Pacific Time Zone (PT, UTC-8).

Nearby Area Codes

209Stockton, California213Los Angeles, California279Sacramento, California310Los Angeles, California323Los Angeles, California341Oakland, California350Stockton, California369Santa Rosa, California408San Jose, California415San Francisco, California

Phone Prefixes in the 650 Area Code

700 prefixes found · 37 carriers · 15 rate centers

PrefixCarrierRate Center
(650) 200TWILIO INTERNATIONAL, INC.SAN MATEO
(650) 201T-MOBILE USA, INC.SSNFRNCSCO
(650) 202UTILITY TELECOM GROUP, LLC - CASAN MATEO
(650) 203BANDWIDTH.COM CLEC, LLC - CAMT VIEW
(650) 204LEVEL 3 TELECOM OF CALIFORNIA, LP - CAMILLBRAE
(650) 205USA MOBILITY WIRELESS, INC.SSNFRNCSCO
(650) 206U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSWOODSIDE
(650) 207CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAREDWOOD CY
(650) 208CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAREDWOOD CY
(650) 209U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSLOS ALTOS
(650) 210PACIFIC BELLMT VIEW
(650) 212PACIFIC BELLSAN MATEO
(650) 213PACIFIC BELLPALO ALTO
(650) 214MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAMT VIEW
(650) 215GLOBAL CROSSING LOCAL SERVICES, INC. - CAMT VIEW
(650) 216PACIFIC BELLREDWOOD CY
(650) 217USA MOBILITY WIRELESS, INC.SAN MATEO
(650) 218T-MOBILE USA, INC.SAN MATEO
(650) 219T-MOBILE USA, INC.SSNFRNCSCO
(650) 220T-MOBILE USA, INC.MT VIEW
(650) 222T-MOBILE USA, INC.SAN MATEO
(650) 223U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSPALO ALTO
(650) 224NEW CINGULAR WIRELESS PCS, LLCMT VIEW
(650) 225PACIFIC BELLSSNFRNCSCO
(650) 226MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CASNCRL-BLMT
(650) 227MCIMETRO ACCESS TRANSMISSION SERVICES LLCSAN MATEO
(650) 228MCIMETRO ACCESS TRANSMISSION SERVICES LLCSSNFRNCSCO
(650) 229MCIMETRO ACCESS TRANSMISSION SERVICES LLCLOS ALTOS
(650) 230MCIMETRO ACCESS TRANSMISSION SERVICES LLCMT VIEW
(650) 231MCIMETRO ACCESS TRANSMISSION SERVICES LLCMILLBRAE
(650) 232MCIMETRO ACCESS TRANSMISSION SERVICES LLCSNCRL-BLMT
(650) 233PACIFIC BELLPALO ALTO
(650) 234PACIFIC BELLPALO ALTO
(650) 235MCIMETRO ACCESS TRANSMISSION SERVICES LLCSAN MATEO
(650) 236PACIFIC BELLPALO ALTO
(650) 237PACIFIC BELLMT VIEW
(650) 238MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CASSNFRNCSCO
(650) 239ONVOY, LLC - CAMILLBRAE
(650) 240ONVOY, LLC - CASAN MATEO
(650) 241LEVEL 3 COMMUNICATIONS, LLC - CAREDWOOD CY
(650) 242LEVEL 3 COMMUNICATIONS, LLC - CASAN MATEO
(650) 243U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONSSSNFRNCSCO
(650) 244PACIFIC BELLSSNFRNCSCO
(650) 245NEW CINGULAR WIRELESS PCS, LLCSAN MATEO
(650) 246PACIFIC BELLSSNFRNCSCO
(650) 247COMMIO, LLCWOODSIDE
(650) 248T-MOBILE USA, INC.PALO ALTO
(650) 249ONVOY, LLC - CAREDWOOD CY
(650) 250T-MOBILE USA, INC.PALO ALTO
(650) 251PACIFIC BELLPALO ALTO
(650) 252PEERLESS NETWORK OF CALIFORNIA, LLC - CAPALO ALTO
(650) 253MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAMT VIEW
(650) 254PACIFIC BELLMT VIEW
(650) 255NEW CINGULAR WIRELESS PCS, LLCSSNFRNCSCO
(650) 256AMERICAN MESSAGING SERVICES, LLCSSNFRNCSCO
(650) 257GLOBAL CROSSING LOCAL SERVICES, INC. - CAREDWOOD CY
(650) 258TELEPORT COMMUNICATIONS AMERICA, LLC - CAPALO ALTO
(650) 259PACIFIC BELLMILLBRAE
(650) 260AT&T - LOCALREDWOOD CY
(650) 261PACIFIC BELLREDWOOD CY
(650) 262LEVEL 3 COMMUNICATIONS, LLC - CAPESCADERO
(650) 263MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CAMOSS BEACH
(650) 264AT&T - LOCALSNCRL-BLMT
(650) 265AT&T - LOCALMT VIEW
(650) 266PACIFIC BELLSSNFRNCSCO
(650) 267LEVEL 3 COMMUNICATIONS, LLC - CASSNFRNCSCO
(650) 268MCIMETRO ACCESS TRANSMISSION SERVICES LLCPESCADERO
(650) 269CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAPALO ALTO
(650) 270T-MOBILE USA, INC.SSNFRNCSCO
(650) 271METROPCS, INC.SNFC JUNPR
(650) 272XO CALIFORNIA, INC.PALO ALTO
(650) 273ASTOUND BROADBAND, LLC - CASSNFRNCSCO
(650) 274T-MOBILE USA, INC.SAN MATEO
(650) 275MCIMETRO ACCESS TRANSMISSION SERVICES LLCWOODSIDE
(650) 276LEVEL 3 TELECOM OF CALIFORNIA, LP - CAHALFMOONBY
(650) 27733 WIRELESS INC.REDWOOD CY
(650) 278T-MOBILE USA, INC.SSNFRNCSCO
(650) 279CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CAMT VIEW
(650) 280METROPCS, INC.MT VIEW
(650) 281T-MOBILE USA, INC.SAN MATEO
(650) 282ASTOUND BROADBAND, LLC - CAMT VIEW
(650) 283T-MOBILE USA, INC.PALO ALTO
(650) 284T-MOBILE USA, INC.HALFMOONBY
(650) 285BANDWIDTH.COM CLEC, LLC - CAPALO ALTO
(650) 286PACIFIC BELLSAN MATEO
(650) 287PACIFIC BELLSAN MATEO
(650) 288LEVEL 3 COMMUNICATIONS, LLC - CASAN MATEO
(650) 289PACIFIC BELLPALO ALTO
(650) 290METROPCS, INC.PACIFICA
(650) 291CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CASSNFRNCSCO
(650) 292LEVEL 3 COMMUNICATIONS, LLC - CASAN MATEO
(650) 293PACIFIC BELLSAN MATEO
(650) 294PACIFIC BELLSAN MATEO
(650) 295PACIFIC BELLSAN MATEO
(650) 296NEW CINGULAR WIRELESS PCS, LLCSSNFRNCSCO
(650) 297LEVEL 3 TELECOM OF CALIFORNIA, LP - CAPESCADERO
(650) 298PACIFIC BELLREDWOOD CY
(650) 299PACIFIC BELLREDWOOD CY
(650) 300ONVOY, LLC - CAPALO ALTO
(650) 301PACIFIC BELLSNFC JUNPR

Showing first 100 of 700 prefixes.

Frequently Asked Questions

Where is area code 650?
Area code 650 is located in California, covering cities including Daly City, San Mateo, Redwood City.
What time zone is area code 650?
Area code 650 is in the Pacific Time Zone (PT, UTC-8).
What state is area code 650?
Area code 650 is in California.