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657 Area Code

Area code 657 serves Anaheim, Santa Ana, Huntington Beach, Garden Grove, Fullerton and nearby communities in California. It has been in service since September 23, 2008, when it was split from 714.

StateCalifornia
Time zonePacific
Local time now…
Prefixes in use699
Overlay with714
Projected to run out2028 ⚠︎
AnaheimSanta AnaHuntington BeachGarden GroveFullertonOrangeWestminsterBuena ParkTustinYorba LindaFountain ValleyPlacentiaCypressBreaRowland HeightsLa MiradaStantonNorth TustinLa PalmaHawaiian GardensMidway CityVilla ParkAnaheimSanta Ana
Cities and towns served by area code 657

Who issues 657 numbers

Mobile 70%VoIP and cable 17%Landline 13%

Share of the 699 prefixes (the three digits after 657) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Verizon Wireless369
T-Mobile74
AT&T Mobility47
Fractel40
Bandwidth35
Onvoy (Sinch)33
Lumen (Level 3)17
Peerless Network14

Cities and towns in area code 657

CityPopulationOther area codes
Anaheim341,008714
Santa Ana315,586714
Huntington Beach191,451714
Garden Grove170,455714
Fullerton138,675714
Orange138,365714
Westminster88,966714
Buena Park81,741714
Tustin77,843714
Yorba Linda65,632714
Fountain Valley55,508714
Placentia54,911714
Cypress48,781714
Brea47,260714
Rowland Heights46,787714
La Mirada45,952714
Stanton40,161714
North Tustin26,038714
La Palma14,907714
Hawaiian Gardens13,373714
Midway City8,094714
Villa Park5,645714

Got a call from 657?

A 657 number was originally issued in California, but that does not prove the caller is there. 17% of 657 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 699 prefixes in area code 657

Format: (657) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 657

Where is area code 657?
Area code 657 is in California. It covers Anaheim, Santa Ana, Huntington Beach, Garden Grove, Fullerton, Orange and 16 more cities and towns.
What time zone is area code 657?
Area code 657 is in the Pacific time zone.
Is 657 a toll-free number?
No. 657 is a geographic area code in California. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 657 share its area with 714?
657 and 714 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
Will area code 657 run out of numbers?
NANPA's latest forecast projects the 657/714 overlay to exhaust in the second quarter of 2028. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in California