Area Code 925 - Oakland, CA

Below is the information for Area Code 925
General Information for Area Code 925
Country United States
State/Province California
Major City Oakland
Time Zone Pacific

Phone directory of numbers beginning with Area Code 925 Prefixes

Prefix Primary City County Phone Type
925-825 Concord, CA Contra Costa Landline
925-826 Concord, CA Contra Costa Landline
925-827 Concord, CA Contra Costa Landline
925-828 San Ramon, CA Contra Costa Landline
925-829 San Ramon, CA Contra Costa Landline
925-830 San Ramon, CA Contra Costa Landline
925-831 Danville, CA Contra Costa Landline
925-833 San Ramon, CA Contra Costa Landline
925-835 Sunol, CA Alameda Landline
925-837 Danville, CA Contra Costa Landline
925-838 Danville, CA Contra Costa Landline
925-839 Martinez, CA Contra Costa Landline
925-842 San Ramon, CA Contra Costa Landline
925-843 San Ramon, CA Contra Costa Landline
925-844 Clayton, CA Contra Costa Landline
925-846 Pleasanton, CA Alameda Landline
925-847 Pleasanton, CA Alameda Cell Number
925-848 Antioch, CA Contra Costa Landline
925-849 Concord, CA Contra Costa Landline
925-852 Concord, CA Contra Costa Landline

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Location Details

Area code is a type of numbering scheme used in telecommunication. It divides the territories of its member countries, the code is a three-digit code. The digits 0 and 1 applied for central office codes. Other digits were applied into geographic areas of the service territory.

  • 200: easily recognizable code (ERC)
  • 201: New Jersey
  • 202: Washington, D.C.
  • 203: Connecticut
  • and so on.

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