Skip to content
Country Dialing CodesConnecting a more open world A clearer
more connected world.
US area code · California

Area code 657

Where the 657 area code is, its overlay and how to dial a +1 657 number from anywhere.

CoversAnaheim, CaliforniaTime zonePacific (PT)TypeOverlay
Quick answer

The 657 area code is in Anaheim, California, United States (Pacific (PT)). To call from abroad: +1 657 555-0123. It is an overlay, so all 10 digits are dialled.

StateCalifornia
Main areaAnaheim
Time zonePacific (PT)
TypeOverlay
10-digit dialingRequired
In service since01-Apr-1999

The 657 area code is a geographic North American Numbering Plan (NANP) code covering Anaheim, California. It has been in service since 01-Apr-1999 and sits in the Pacific (PT) time zone.

Overlay 657 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

657714

How to dial a 657 number

From abroad+1 657 555-0123
Within the US / Canada1 657 555-0123
Locally (same area)657 555-0123

Cities in the 657 area code

A 657 number is usually in one of these places in California — 1 county.

Anaheim OrangeBrea OrangeBuena Park OrangeCypress OrangeFountain Valley OrangeFullerton OrangeGarden Grove OrangeHuntington Beach OrangeNorth TustinOrange OrangePlacentia OrangeSanta Ana OrangeStanton OrangeWestminster OrangeYorba Linda Orange

Other California area codes

209213279310323341350357369408415424442510530559

Frequently asked questions

Where is the 657 area code?

The 657 area code is in Anaheim, California, United States (Pacific (PT)).

Is 657 an overlay area code?

Yes. 657 overlays the same region as 714, so callers dial all 10 digits.

Do I have to dial 10 digits for 657?

Yes — dial the area code plus the seven-digit number.

How do I call a 657 number from another country?

Dial your exit code (or +), then 1, then 657, then the number: +1 657 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 657 number does not pinpoint a street or ZIP code.

Missed a call from +1 657?

In the 30 days to September 24, 2026, 342 unwanted calls showing a 657 number were reported to the US Federal Trade Commission, 58% of them recorded messages or robocalls. That puts 657 at #271 of 670 area codes reported.

Other159
Dropped call or no message53
Calls pretending to be government, businesses, or family and friends42
Reducing your debt (credit cards, mortgage, student loans)37
Before you call back
  • If you do not know anyone in California, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 657 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 657 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 657:

Cellco Partnership Dba Verizon Wireless 364T-Mobile USA, Inc. 74New Cingular Wireless PCS, LLC 47Fractel, LLC 40Bandwidth.Com CLEC, LLC 35Onvoy, LLC 33

About 68.5% of the 708 prefixes in use belong to mobile carriers: a 657 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 657 — cities & rate centres