279 Phone Number Lookup | California Area Code

Look up any phone number starting with 279 to identify the owner name, address, spam reports, and more. The 279 area code is serving Sacramento, the state capital of California, and parts of five surrounding counties.

Look Up a 279 Phone Number

Enter a full 10-digit number to identify the caller and whether it has been reported as spam.

Federal Data Sources

Federal Data

State Data Sources

State Data

County Data Sources

County Data

City Data Sources

City Data

/ 279

Where Is Area Code 279 Located?

Area code 279 covers Sacramento and its surrounding suburbs.

Counties Served:

  • El Dorado County
  • Placer County
  • Sacramento County
  • Sutter County
  • Yolo County

Major Cities:

Other Cities and Towns:

  • Antelope
  • Arden-Arcade
  • Carmichael
  • Clarksburg
  • El Dorado Hills
  • Fair Oaks
  • Florin
  • Foothill Farms
  • Gold River
  • Granite Bay
  • Isleton
  • La Riviera
  • Lincoln
  • Locke
  • Loomis
  • McClellan Park
  • Newcastle
  • North Highlands
  • Orangevale
  • Parkway-South Sacramento
  • Penryn
  • Pleasant Grove
  • Rancho Murieta
  • Rio Linda
  • Rocklin
  • Rosemont
  • Vineyard
  • Walnut Grove
  • Wilton

Overlay System

Area code 279 is an overlay to area code 916 . Area code 916 was established in October 1947. Area code 279 began service in March 2018.

Area Code 279 Location Map

Area Code 279 Location on California Map

Area code 279 is a general purpose code which was placed in service on March 10, 2018.

Phone Number Prefixes and Carriers

Our California phone number lookup for the 279 area code analyzes the three-digit prefix to identify the initially assigned telecommunications company and rate center. This prefix code data may help to determine the U.S. carrier, California geographic region, and local calling area associated with the phone number.

Phone numbers follow the following structure under the North American Numbering Plan:

  • NPA- area code (where the number was originally assigned)
  • NXX - Central office code that locates the specific neighborhood and identifies the service provider
  • XXXX - Subscriber number identifies the individual phone line within that local exchange

Understanding the area code can help you determine if a call is local to your area. However, keep in mind that due to mobile number portability and VoIP services, the caller may be anywhere in the United States, so it’s best to search for the most recent phone number details.

Prefixes by Company

Company Number of Prefixes

Carrier names have been updated from their original FCC assignments to reflect current companies following mergers, acquisitions, and rebranding. Updates were determined using AI-assisted research and may not be accurate or reflect up to date changes. This data is provided without warranties of accuracy or completeness.

Prefixes by Rate Center

Rate Center Number of Prefixes

Other California Area Codes

Browse California area codes for phone number lookup: