Area code 357

357 is a newer area code, in service since March 26, 2025, added on top of 559. See all new area codes.

Look up a 357 number

Cities and towns in area code 357

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 357.

• Clovis, CA (1)
• Firebaugh, CA (1)
• Fresno, CA (1)
• Hanford, CA (1)
• Kingsburg, CA (1)
• Lemoore, CA (1)
• Sanger, CA (1)
• Springville, CA (1)
• Visalia, CA (1)

Phone companies in area code 357

The carriers that hold the most 357 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

All 9 prefixes in area code 357

Pick the 3 digits after the area code to see that prefix’s city and carrier.

• 200
• 222
• 333
• 357
• 444
• 666
• 777
• 888
• 999

Area codes that overlay 357

• 559

Questions

Where is area code 357?

Area code 357 is in California. It serves Clovis, Firebaugh, Fresno, Hanford and Kingsburg and 4 other cities and towns.

What time zone is area code 357 in?

Area code 357 uses Pacific Time.

What area codes overlay 357?

559 serves the same area as 357. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.

Is a call from area code 357 a scam?

The area code alone doesn’t tell you. Most calls from 357 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 357 number, let it go to voicemail.

When did area code 357 start?

357 went into service in 2025. It was created from area code 559.

Can a 357 number be outside California?

Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 357 caller can be anywhere.

Other area codes in California