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Where Is 350 Area Code?

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Database Updated: August 4, 2025
California Phone Number Lookups
Where Is 350 Area Code?

Where is Area Code 350?

Area code 350 is located in the state of California. It serves as an overlay for the existing 209 area code, covering a significant portion of the Central Valley region. Major cities within this area code include Stockton, Modesto, and Merced. The counties served by area code 350 include San Joaquin, Stanislaus, Merced, and parts of other surrounding counties. This region is known for its agricultural productivity and is a vital part of California's economy.

For more detailed information on the regions covered by area code 350, you can visit the California Public Utilities Commission.

What time zone is 350 area code in the USA?

The 350 area code is located in the Pacific Time Zone (PT). This time zone is 8 hours behind Coordinated Universal Time (UTC-8). The Pacific Time Zone observes Daylight Saving Time, shifting to Pacific Daylight Time (PDT) during the summer months, which is UTC-7. Daylight Saving Time typically begins on the second Sunday in March and ends on the first Sunday in November.

History of the 350 Area Code

The 350 area code was officially created in the year 2023. It was introduced as an overlay to address the increasing demand for new telephone numbers in the region. The overlay was necessary due to the exhaustion of available numbers in the existing area codes serving the same regions, such as 213, 310, and 818.

The introduction of the 350 area code was part of a broader effort by the North American Numbering Plan Administration (NANPA) to ensure a continuous supply of telephone numbers in densely populated and rapidly growing areas. The overlay method was chosen to minimize disruption, allowing existing customers to retain their current numbers while new customers receive numbers with the 350 area code.

How Many People Use the 350 Area Code?

The 350 area code serves a substantial population within California. While exact numbers can fluctuate, it is estimated that the area code covers several million residents across the counties it serves. The introduction of the 350 area code was a response to the high demand for new numbers in these populous regions, reflecting the ongoing growth and development in Southern California.

Is the 350 Area Code Toll-Free?

The 350 area code is not a toll-free number. It is a geographic area code assigned to specific regions within California. Calls made to numbers with the 350 area code are subject to standard local or long-distance charges, depending on the caller's location and service provider.

For those seeking toll-free numbers, area codes such as 800, 888, 877, 866, 855, 844, and 833 are designated for toll-free services. These numbers are used for businesses and services that wish to offer free calling to their customers. For more information on toll-free numbers and their regulations, you can refer to the Federal Communications Commission (FCC).

For any inquiries or assistance regarding area codes and telecommunications services, you may contact the California Public Utilities Commission at:

505 Van Ness Avenue, San Francisco, CA 94102
 

California Phone Numbers
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