Skip to main content

The 357 area code covers the same area as 559, including Fresno, Visalia and 52 more places in California.

Area code 357 is in California, on Pacific Time. In the 357 area, phone numbers are given out most in Fresno County, then Tulare and Kings counties. It has been in service since March 26, 2025. 559 covers the same area, so two neighbours can have different area codes.

Where
5 counties in California, mostly Fresno County, Tulare County and Kings County
Time zone
Pacific Time
In service since
March 26, 2025
Shares its area with
559 (since 1998)
Prefixes in use
7
How to dial
Local calls need 1, then the area code, then the number: 1-357-555-0142.

Find out who called you from a 357 number.

Enter the full 10-digit number to see who it is listed to, the city and state on the listing, and whether it is a mobile, landline or VoIP line. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup.

Works for US & Canada numbers. Enter a 10-digit number, e.g. (415) 555-0132.

Free & rate-limited. No signup required to try.

Kingsburg holds 14% of the phone prefixes in area code 357.

A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 7 prefixes in use shows where 357 numbers are actually given out.

  • Kingsburg1 prefix, 14%
  • Firebaugh1 prefix, 14%
  • Clovis1 prefix, 14%
  • Sanger1 prefix, 14%
  • Hanford1 prefix, 14%
  • Fresno1 prefix, 14%
  • Visalia1 prefix, 14%
One dot per US area code; 357 is the ringed one.

Also served: Reedley, Dinuba, Selma and Chowchilla and 42 smaller places.

Each prefix, or block of 1,000 numbers inside it, is also handed to a carrier. A number keeps its digits when its owner switches carrier, so the prefix no longer tells you who carries it today. Our free carrier lookup shows which carrier a 357 number is on now.

357 started in 2025 as an overlay on 559, and its ground has not changed since.

  1. 2025

    357 starts on March 26, 2025, as an overlay on 559: new numbers on the same ground.

A 357 number on your screen can still be a scam, because caller ID is easy to fake.

  1. Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
  2. Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
  3. Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
  4. Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.

The area codes closest to 357 are 209, 831 and 661.

This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.

209 / 350Stockton, CA831Salinas, CA661Bakersfield, CA805 / 820Santa Barbara, CA408 / 669San Jose, CA925Walnut Creek, CA

California has 40 other area codes.

209Stockton213Los Angeles279Sacramento310Santa Monica323Los Angeles341Oakland350Stockton369Santa Rosa408San Jose415San Francisco424Beverly Hills442Victorville510Oakland530Chico559Fresno562Long Beach619San Diego626Alhambra628San Francisco650Palo Alto657Anaheim661Bakersfield669San Jose707Santa Rosa714Anaheim738Los Angeles747Burbank760Palm Springs805Santa Barbara818Van Nuys820Camarillo831Salinas837Redding840Pomona858San Diego909Ontario916Sacramento925Walnut Creek949Irvine951Riverside

Browse every US area code

These are the questions people ask most about area code 357.

Where is area code 357?

357 covers Fresno, Visalia, Clovis and Madera and 50 more places in California. In the 357 area, phone numbers are given out most in Fresno County, then Tulare and Kings counties.

What state is area code 357 in?

California. 357 is a California area code on Pacific Time.

What cities use area code 357?

The places holding the most 357 prefixes are Fresno, Visalia, Clovis, Madera, Hanford, Porterville, Tulare and Lemoore, out of 54 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.

What time zone is area code 357 in?

357 is on Pacific Time.

When did area code 357 start?

357 went into service on March 26, 2025, as an overlay on 559: new numbers for the same area.

Is 357 the same area as 559?

Yes. 559 (since 1998) covers the same ground as 357. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.

How do I dial a 357 number?

Local calls need 1, then the area code, then the number: 1-357-555-0142.

Is 357 a toll-free number?

No. 357 is a regular area code for Fresno and Visalia in California, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.

What area codes are near 357?

The closest are 209/350 (Stockton, California), 831 (Salinas, California), 661 (Bakersfield, California) and 805/820 (Santa Barbara, California), measured between the centres of each area.

Who called me from a 357 number?

Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.

Is area code 357 a scam?

357 is a real California area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.

Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.