357 Phone Number Lookup

357 Phone Numbers Recently Reported as Spam

357 area code numbers reported as unwanted calls to the FTC in the last 30 days.

Phone Number	Complaints	Last Reported

Common Area Code 357 Phone Scams

Where is area code 357 located?

Area code 357 covers the central San Joaquin Valley in central California.

Counties Served:

• Fresno
• Madera
• Kings
• Tulare

Major Cities:

• Fresno
• Visalia
• Porterville
• Coalinga
• Clovis
• Madera
• Sanger
• Reedley
• Dinuba
• Selma
• Tulare
• Hanford
• Lemoore
• Avenal
• Kingsburg

Other Cities and Towns:

• Ahwahnee
• Alpaugh
• Armona
• Auberry
• Avenal
• Badger
• Big Creek
• Biola
• Bonadelle Ranchos-Madera Ranchos
• Bowles
• Calwa
• Cantua Creek
• Caruthers
• Chowchilla
• Coarsegold

Overlay System

Area code 357 is an overlay to area code 559 , both serving the same geographic region. Area code 559 was placed in service in 1998, and area code 357 was added in 2025. Ten-digit dialing is required in this region.

FAQs About 357 Phone Numbers

Is area code 357 a scam?

No, 357 is a legitimate California area code serving the San Joaquin Valley, including Fresno and Visalia. Because it is a brand-new prefix, spam-reporting databases have minimal records, making it attractive to robocall operations flying under the radar.

Why do I get spam calls from area code 357?

Fraud dialers use 357 because call-blocking algorithms rely on complaint volume, and freshly issued numbers have none. As the prefix accumulates history, it is mirroring local fraud patterns like PG&E utility disconnection threats, fake debt-collection calls, and government-benefit impersonation.

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