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Area Code 925

Where does the 925 area code belong?

STATE
California
TIME ZONE
Pacific Time
MAJOR CITY
Walnut Creek

The 925 Area Code (or Area Code 925) is located in the state of CA. Area Code 925 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 1.26 million unique phone numbers and 3.92 million individuals near the city of Pleasanton

Area Code 925 History

Area code 925 was put into service. Area code 925 was created from a split of area code 510.

Following cities also use area code 925:

Antioch, Brentwood, Clayton, Concord, Danville, Fremont, Hayward, Lafayette, Livermore, Martinez, Moraga, Oakland, Oakley, Orinda, Pittsburg, Pleasanton, San Ramon, Sunol, Walnut Creek.

ZIP codes in Area Code 925:

90001 (Los Angeles)
90002 (Los Angeles)
90003 (Los Angeles)
90004 (Los Angeles)
90005 (Los Angeles)
90006 (Los Angeles)
90007 (Los Angeles)
90008 (Los Angeles)
90009 (Los Angeles)
90010 (Los Angeles)

Big city in area code 925

Concord

COUNTY
Contra Costa
POPULATION
127,291
Antioch

COUNTY
Contra Costa
POPULATION
105,722
Pittsburg

COUNTY
Contra Costa
POPULATION
87,107
Livermore

COUNTY
Alameda
POPULATION
86,227
Source: WorldAtlas.com
NUMBER OF PREFIXES
582
NUMBER OF CELLPHONES
373,613
NUMBER OF LAND LINES
651,403
MEDIAN HOME VALUE
$794K
MEDIAN INCOME
$145K
Source: WorldAtlas.com

Browse Area Code (925) Prefixes

PREFIX COUNTY CITY CARRIER TYPE
925-804 Contra Costa San Ramon Teleport Communications Group - San Francisco Landline
925-806 Contra Costa San Ramon Pacific Bell Landline
925-807 Contra Costa San Ramon Xo California, Inc. Landline
925-808 Contra Costa Concord Pacific Bell Landline
925-809 Contra Costa Brentwood U.s. Telepacific Corp. - CA Landline
925-812 Contra Costa Martinez Metro Pcs, Inc. Wireless
925-813 Contra Costa Antioch Cellco Partnership Dba Verizon Wireless - CA Wireless
925-815 Contra Costa Danville Pacific Bell Landline
925-817 Contra Costa Walnut Creek Pacific Bell Wireless
925-818 Contra Costa Walnut Creek New Cingular Wireless Pcs, Llc Wireless
925-819 Contra Costa San Ramon New Cingular Wireless Pcs, Llc Wireless
925-820 Contra Costa Danville Pacific Bell Landline
925-822 Contra Costa Concord Mcimetro Access Transmission Services Llc Landline
925-823 Contra Costa San Ramon Pacific Bell Landline
925-824 Contra Costa San Ramon Pacific Bell Landline
925-825 Contra Costa Concord Pacific Bell Landline
925-826 Contra Costa Concord Mci Worldcom Communications, Inc., CA Landline
925-827 Contra Costa Concord Pacific Bell Landline
925-828 Contra Costa San Ramon Pacific Bell Landline
925-829 Contra Costa San Ramon Pacific Bell Landline
925-830 Contra Costa San Ramon Pacific Bell Landline
925-831 Contra Costa Danville Pacific Bell Landline
925-833 Contra Costa San Ramon Pacific Bell Landline
925-835 Alameda Sunol U.s. Telepacific Corp. - CA Landline
925-837 Contra Costa Danville Pacific Bell Landline
925-838 Contra Costa Danville Pacific Bell Landline
925-839 Contra Costa Martinez U.s. Telepacific Corp. - CA Landline
925-842 Contra Costa San Ramon Pacific Bell Landline
925-843 Contra Costa San Ramon Level 3 Telecom Of California, Lp - CA Landline
925-844 Contra Costa Clayton U.s. Telepacific Corp. - CA Landline
925-846 Alameda Pleasanton Pacific Bell Landline
925-847 Alameda Pleasanton Pacific Bell Wireless
925-848 Contra Costa Antioch Matrix Telecom, Llc. Sii Tnci - CA Landline
925-849 Contra Costa Concord U.s. Telepacific Corp. - CA Landline
925-852 Contra Costa Concord Xo California, Inc. Landline
925-854 Contra Costa Danville Mci Worldcom Communications, Inc., CA Landline
925-855 Contra Costa Danville Pacific Bell Landline
925-856 Contra Costa Danville Mcimetro Access Transmission Services Llc Landline
925-858 Contra Costa San Ramon New Cingular Wireless Pcs, Llc Wireless
925-860 Alameda Fremont Xo California, Inc. Landline
925-862 Alameda Sunol Pacific Bell Landline
925-864 Contra Costa Concord Sprint Spectrum L.p. Wireless
925-866 Contra Costa San Ramon Pacific Bell Landline
925-867 Contra Costa San Ramon Pacific Bell Landline
925-871 Alameda Oakland Matrix Telecom, Llc. Sii Tnci - CA Landline
925-872 Alameda Pleasanton Cellco Partnership Dba Verizon Wireless - CA Wireless
925-875 Contra Costa San Ramon Pacific Bell Landline
925-876 Contra Costa Walnut Creek New Cingular Wireless Pcs, Llc Wireless
925-878 Contra Costa Lafayette Sprint Spectrum L.p. Wireless
925-884 Contra Costa San Ramon Matrix Telecom, Llc. Sii Tnci - CA Landline
925-885 Alameda Oakland Matrix Telecom, Llc. Sii Tnci - CA Landline
925-886 Contra Costa Danville Matrix Telecom, Llc. Sii Tnci - CA Landline
925-887 Contra Costa Concord Matrix Telecom, Llc. Sii Tnci - CA Landline
925-888 Alameda Oakland Matrix Telecom, Llc. Sii Tnci - CA Landline
925-889 Contra Costa Clayton Matrix Telecom, Llc. Sii Tnci - CA Landline
925-890 Contra Costa Concord New Cingular Wireless Pcs, Llc Wireless
925-891 Alameda Oakland Matrix Telecom, Llc. Sii Tnci - CA Landline
925-892 Alameda Pleasanton Matrix Telecom, Llc. Sii Tnci - CA Landline
925-895 Contra Costa San Ramon Sprint Spectrum L.p. Wireless
925-899 Contra Costa Walnut Creek New Cingular Wireless Pcs, Llc Wireless
925-900 Contra Costa Lafayette O1 Communications, Inc. - CA Landline
925-901 Contra Costa San Ramon Pacific Bell Landline
925-904 Contra Costa San Ramon Pacific Bell Landline
925-905 Contra Costa San Ramon Matrix Telecom, Llc. Sii Tnci - CA Landline
925-906 Contra Costa Walnut Creek Pacific Bell Wireless
925-913 Contra Costa San Ramon T-Mobile Usa, Inc. Wireless
925-914 Contra Costa Clayton T-Mobile Usa, Inc. Wireless
925-915 Contra Costa Danville T-Mobile Usa, Inc. Wireless
925-917 Contra Costa Martinez T-Mobile Usa, Inc. Wireless
925-918 Alameda Pleasanton Cellco Partnership Dba Verizon Wireless - CA Wireless
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Phone Numbers Starting With (925) Area Code

Phone Number
925-232-1423		 USAGE
Landline		 City
Pittsburg		 Operate
Read more about who called from 9252321423		 Update Time
Mar-26-2026
Phone Number
925-678-5585		 USAGE
Landline		 City
Danville		 Operate
Read more about who called from 9256785585		 Update Time
Mar-26-2026
Phone Number
925-307-5895		 USAGE
Landline		 City
San Ramon		 Operate
Read more about who called from 9253075895		 Update Time
Mar-26-2026
Phone Number
925-482-7247		 USAGE
Landline		 City
Walnut Creek		 Operate
Read more about who called from 9254827247		 Update Time
Mar-26-2026
Phone Number
925-361-2225		 USAGE
Landline		 City
San Ramon		 Operate
Read more about who called from 9253612225		 Update Time
Mar-26-2026
Phone Number
925-891-7343		 USAGE
Landline		 City
Oakland		 Operate
Read more about who called from 9258917343		 Update Time
Mar-26-2026
Phone Number
925-332-4738		 USAGE
Landline		 City
Concord		 Operate
Read more about who called from 9253324738		 Update Time
Mar-26-2026
Phone Number
925-318-6878		 USAGE
Landline		 City
Walnut Creek		 Operate
Read more about who called from 9253186878		 Update Time
Mar-26-2026
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