Area Code Overview

Area code 357 is a geographic telephone area code in California that went into service on March 26, 2025. The geographic regions covered by this area code overlay has a population of approximately 2,039,282.

Overlay and Dialing Rules

Area Code: 357
State: California
Type: General Purpose Code
In Service Date: March 26, 2025
Overlay Complex: 357/559
Local Dialing Plan: This area requires you to dial 1 and the area code when calling locally.

Estimated Number of Assigned Phone Numbers in Area Code 357

Estimated Service-Type Mix of Assigned Phone Numbers in Area Code 357

No usage distribution is available for this area code.

Estimated Share of Wireless Numbers Originally Assigned to Each Carrier in Area Code 357

Estimated assigned wireless phone numbers: 0

Numbers may later be ported to another carrier, but this chart reflects original number assignment, not current subscriber share.

No wireless provider distribution is available for this area code.

Estimated Share of Wireline and VoIP Numbers Originally Assigned to Each Carrier in Area Code 357

Estimated assigned wireline and VoIP phone numbers: 0

No wireline or VoIP provider distribution is available for this area code.

Other / Unclassified Assigned Numbering in Area Code 357

Estimated assigned other or unclassified phone numbers: 0

No other or unclassified provider distribution is available for this area code.

Cities and Towns in Area Code 357

Alpaugh, California Auberry, California Avenal, California Badger, California Big Creek, California Burrel, California Caruthers, California Chowchilla, California Clovis, California Coalinga, California Coarsegold, California Corcoran, California Del Rey, California Dinuba, California Ducor, California Dunlap, California Exeter, California Firebaugh, California Fowler, California Fresno, California Friant, California Grant, California Hanford, California Huron, California Kennedy, California Kerman, California Kingsburg, California Laton, California Lemon Cove, California Lemoore, California Lindsay, California Madera, California Mendota, California Modesto, California North Fork, California O Neals, California Orange Cove, California Parlier, California Pixley, California Porterville, California Raymond, California Reedley, California Riverdale, California San Joaquin, California Sanger, California Selma, California Sequoia, California Shaver Lake, California Springville, California Stratford, California Terra Bella, California Three Rivers, California Tipton, California Tivy Valley, California Tulare, California Visalia, California Wishon, California Woodlake, California

These geographic regions are also served by area code 559.

How These Figures Were Built

These figures are estimates based on public phone-number assignment records. They are meant to show the likely mix of assigned phone numbers associated with area code 357, not live customer counts.

Some providers may have assigned phone numbers tied to this area code even if they do not actively market or sell service locally. These figures reflect public number-assignment records, not confirmed local service availability.

They also do not reflect number portability at the individual phone-number level, so some numbers may now be used on a different network or by a different provider than the original assignment records suggest.

Population data and locality matching provided by GeoNames.

Last refreshed: April 15, 2026 6:22 pm