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US area code · California

657 area code

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.

Number holders in area code 657

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 708 prefixes are in use in 657, shared by 31 companies. The largest holders:

CompanyPrefixesShare
Cellco Partnership Dba Verizon Wireless36451%
T-Mobile USA, Inc.7410%
New Cingular Wireless PCS, LLC477%
Fractel, LLC406%
Bandwidth.Com CLEC, LLC355%
Onvoy, LLC335%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 657 numbers

Reports to the FTC, last 30 days
342
Recorded messages or robocalls
58%
Rank among area codes
#271 of 670
Most reported subjects
Other (159)
Dropped call or no message (53)
Calls pretending to be government, businesses, or family and friends (42)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

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

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