What area code is 357?
Here's everything about it.
Instant lookup for the 357 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
357 at a glance
Summary
Cities & regions served by 357
Fresno (overlay)5 communities on record for 357.
Where 357 sits on the map
Overlay of 559Coverage area
About the 357 region
357 covers Fresno in California, including Hanford, Madera, Tulare and Visalia. The code has been in service since 2025.
357 itself is an overlay: it shares its territory with 559 and was introduced when those codes ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing is required across the region.
Overlaid on 559.
Who called me from 357?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 357 does not prove the caller is really in the 357 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 357 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 357 number below.
Frequently asked questions
FAQWhat area code is 357?+–
357 is a telephone area code serving Fresno in California, United States, in service since 2025.
Where is area code 357 located?+–
It covers Hanford, Madera, Tulare and Visalia in California.
What cities are in area code 357?+–
Major communities on record include Hanford, Madera, Tulare and Visalia. The code's territory spans the Fresno region of California.
What time zone is 357?+–
357 observes Pacific (PT), which is UTC−8 / −7 DST and follows daylight saving time.
When did area code 357 start?+–
357 entered service in 2025. Its history: overlaid on 559.
Why does area code 357 exist?+–
357 is an overlay of 559: it covers the exact same territory and was introduced when the original code ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing applies.
Is 357 a scam area code?+–
Scam and robocall traffic can use any North American code, 357 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 357 number, and report anything suspicious.
Can I get a 357 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 357 number regardless of where you physically live, although in an overlaid region you may be assigned 559 instead.