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925 Area CodeConcord, CA

Area code 925 covers Concord and 40 other cities in California: 1,134,632 people in 2 counties, Contra Costa and Alameda, on Pacific Time (PT).

Overview

Major City
Concord
State
California (CA)
Timezone
Pacific Time (PT)
Current Time
–:––
Overlay
No – unique area code

Nearby Area Codes

Where is area code 925?

Overview of the 925 Area Code

Geographic Coverage of the 925 Area Code

All 41 cities

What cities does area code 925 cover?

CityStatePopulationPopulation in 925% of listed-city population% of City
ConcordCA124,016124,01610.4%100.0%
AntiochCA118,453118,4539.9%100.0%
Mountain ViewCA87,31687,3167.3%100.0%
San RamonCA85,92485,9247.2%100.0%
LivermoreCA84,86784,8677.1%100.0%
PittsburgCA77,13177,1316.5%100.0%
PleasantonCA75,66475,6646.3%100.0%
Walnut CreekCA70,81770,8175.9%100.0%
DublinCA70,54465,0025.9%92.1%
BrentwoodCA66,28666,2865.6%100.0%
OakleyCA47,15847,1583.9%100.0%
DanvilleCA43,41043,4103.6%100.0%
MartinezCA37,00637,0063.1%100.0%
Pleasant HillCA34,16934,1692.9%100.0%
LafayetteCA25,37125,3712.1%100.0%
Bay PointCA21,34921,3491.8%100.0%
OrindaCA19,57319,5731.6%100.0%
MoragaCA16,69816,6981.4%100.0%
AlamoCA14,57014,5701.2%100.0%
Discovery BayCA13,35213,3521.1%100.0%
ClaytonCA10,93310,9330.9%100.0%
BlackhawkCA9,3549,3540.8%100.0%
Contra Costa CentreCA5,3645,3640.4%100.0%
SaranapCA5,2025,2020.4%100.0%
Vine HillCA3,7613,7610.3%100.0%
PachecoCA3,6853,6850.3%100.0%
San MiguelCA3,3923,3920.3%100.0%
Reliez ValleyCA3,1013,1010.3%100.0%
Camino TassajaraCA2,1972,1970.2%100.0%
Bethel IslandCA2,1372,1370.2%100.0%
KnightsenCA1,5681,5680.1%100.0%
Castle HillCA1,2991,2990.1%100.0%
ByronCA1,2771,2770.1%100.0%
DiabloCA1,1581,1580.1%100.0%
Acalanes RidgeCA1,1371,1370.1%100.0%
Shell RidgeCA9599590.1%100.0%
Norris CanyonCA9579570.1%100.0%
Alhambra ValleyCA9249240.1%100.0%
SunolCA9139130.1%100.0%
North GateCA6796790.1%100.0%
ClydeCA6786780.1%100.0%

City population is shown in full; each city's share inside 925 is measured from Census tract centroids.

What counties does area code 925 cover?

CountyStatePopulation in 925% of area-code footprint% of County
Contra Costa CountyCA895,54579%77%
Alameda CountyCA239,08721%14%
Sources:

Has area code 925 been reported for unwanted calls?

Yes – 2,511 FTC complaints, May 29 – Oct 1, 2026.

  • 66% robocalls
  • ↓ 5% vs prior period
  • FTC data, retrieved 2026-10-05

Most-reported subjects

  • Other50%1,250
  • Dropped call or no message13%329
  • Reducing your debt (credit cards, mortgage, student loans)11%280

Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints.

Which prefixes and exchanges belong to area code 925?

62% assigned to a telco

  • 77% Landline
  • 23% Wireless
  • 0% Unknown
PrefixUsageCarrier
(925)200-WirelessVerizon Wireless
(925)201-LandlineTpx Communications
(925)202-WirelessSprint Spectrum
(925)203-WirelessNew Cingular Wireless Pcs
(925)204-WirelessT-Mobile Usa
(925)205-LandlineAmerican Messaging Services
(925)206-WirelessVerizon Wireless
(925)207-WirelessSprint Spectrum
(925)208-LandlineTeleport Communications America
(925)209-WirelessSprint Spectrum
(925)210-LandlinePacific Bell
(925)212-WirelessNew Cingular Wireless Pcs
(925)213-WirelessUsa Mobility Wireless
(925)214-LandlinePeerless Network Of California
(925)215-LandlineLevel 3 Communications
(925)216-WirelessNew Cingular Wireless Pcs
(925)217-LandlineLevel 3 Communications
(925)218-LandlineLevel 3 Communications
(925)219-LandlineLevel 3 Communications
(925)220-LandlineAmerican Messaging Services
(925)221-Wireless33 Wireless
(925)222-LandlineOnvoy
(925)223-LandlineMcimetro Access Transmission Services
(925)224-LandlinePacific Bell
(925)225-LandlinePacific Bell
(925)226-LandlineXo California
(925)227-LandlinePacific Bell
(925)228-LandlinePacific Bell
(925)229-LandlinePacific Bell
(925)230-LandlineLevel 3 Communications
(925)231-LandlineLevel 3 Communications
(925)232-LandlineLevel 3 Communications
(925)233-LandlineLevel 3 Communications
(925)234-LandlineLevel 3 Communications
(925)235-LandlineLevel 3 Communications
(925)236-LandlineLevel 3 Communications
(925)237-LandlineXo California
(925)238-LandlineComcast Ip Phone
(925)239-LandlinePeerless Network Of California
(925)240-LandlinePacific Bell
(925)241-LandlineMcimetro Access Transmission Services
(925)242-LandlinePacific Bell
(925)243-LandlinePacific Bell
(925)244-LandlinePacific Bell
(925)245-LandlinePacific Bell
(925)246-LandlinePacific Bell
(925)247-LandlinePacific Bell
(925)248-LandlinePacific Bell
(925)249-LandlinePacific Bell
(925)250-WirelessSprint Spectrum
(925)251-LandlinePacific Bell
(925)252-LandlinePacific Bell
(925)253-LandlinePacific Bell
(925)254-LandlinePacific Bell
(925)255-LandlineMcimetro Access Transmission Services
(925)256-LandlinePacific Bell
(925)257-LandlineMcimetro Access Transmission Services
(925)258-LandlinePacific Bell
(925)259-LandlineXo California
(925)260-WirelessSprint Spectrum
(925)261-LandlinePacific Bell
(925)262-LandlineGlobal Crossing Local Services
(925)263-LandlineGlobal Crossing Local Services
(925)264-LandlineGlobal Crossing Local Services
(925)265-LandlineGlobal Crossing Local Services
(925)266-WirelessVerizon Wireless
(925)267-LandlineXo California
(925)268-LandlineXo California
(925)269-LandlineXo California
(925)270-LandlineLevel 3 Communications
(925)271-LandlineTeleport Communications America
(925)272-LandlineLevel 3 Communications
(925)273-LandlineXo California
(925)274-LandlinePacific Bell
(925)275-LandlinePacific Bell
(925)276-LandlineXo California
(925)277-LandlinePacific Bell
(925)278-LandlineComcast Ip Phone
(925)279-LandlinePacific Bell
(925)280-LandlinePacific Bell
(925)281-LandlineOnvoy
(925)282-LandlineMcimetro Access Transmission Services
(925)283-LandlinePacific Bell
(925)284-LandlinePacific Bell
(925)285-WirelessNew Cingular Wireless Pcs
(925)286-WirelessNew Cingular Wireless Pcs
(925)287-LandlinePacific Bell
(925)288-LandlinePacific Bell
(925)289-LandlineYmax Communications
(925)290-LandlineXo California
(925)291-LandlineXo California
(925)292-LandlineComcast Ip Phone
(925)293-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)294-LandlinePacific Bell
(925)295-LandlinePacific Bell
(925)296-LandlinePacific Bell
(925)297-LandlineXo California
(925)298-LandlineMcimetro Access Transmission Services
(925)299-LandlinePacific Bell
(925)300-WirelessT-Mobile Usa
(925)301-LandlineLevel 3 Communications
(925)302-LandlineLevel 3 Telecom Of California
(925)303-LandlineLevel 3 Telecom Of California
(925)304-LandlineLevel 3 Communications
(925)305-LandlineLevel 3 Telecom Of California
(925)306-LandlineSonic Telecom
(925)307-LandlineLevel 3 Telecom Of California
(925)308-LandlineLevel 3 Telecom Of California
(925)309-LandlineLevel 3 Telecom Of California
(925)310-LandlineLevel 3 Telecom Of California
(925)312-WirelessUsa Mobility Wireless
(925)313-LandlinePacific Bell
(925)314-LandlinePacific Bell
(925)315-LandlineLevel 3 Telecom Of California
(925)316-LandlineLevel 3 Communications
(925)317-LandlineBandwidth.Com Clec
(925)318-LandlineLevel 3 Telecom Of California
(925)319-WirelessT-Mobile Usa
(925)320-LandlineTpx Communications
(925)321-WirelessNew Cingular Wireless Pcs
(925)322-LandlineBandwidth.Com Clec
(925)323-WirelessNew Cingular Wireless Pcs
(925)324-WirelessVerizon Wireless
(925)325-WirelessT-Mobile Usa
(925)326-LandlineLevel 3 Communications
(925)327-LandlinePacific Bell
(925)328-LandlinePacific Bell
(925)329-WirelessVerizon Wireless
(925)330-WirelessNew Cingular Wireless Pcs
(925)331-LandlineTpx Communications
(925)332-LandlinePeerless Network Of California
(925)333-LandlineAmerican Messaging Services
(925)334-WirelessVerizon Wireless
(925)335-LandlinePacific Bell
(925)336-WirelessNew Cingular Wireless Pcs
(925)337-WirelessVerizon Wireless
(925)338-LandlineBandwidth.Com Clec
(925)339-LandlineMetropcs
(925)340-WirelessUsa Mobility Wireless
(925)341-WirelessNew Cingular Wireless Pcs
(925)342-LandlineAmerican Messaging Services
(925)343-LandlineAmerican Messaging Services
(925)344-LandlineTpx Communications
(925)345-LandlineAmerican Messaging Services
(925)346-LandlineAmerican Messaging Services
(925)347-LandlineAmerican Messaging Services
(925)348-WirelessNew Cingular Wireless Pcs
(925)349-LandlineTeleport Communications America
(925)350-LandlineComcast Ip Phone
(925)351-WirelessSprint Spectrum
(925)352-WirelessSprint Spectrum
(925)353-WirelessNew Cingular Wireless Pcs
(925)354-WirelessNew Cingular Wireless Pcs
(925)355-LandlinePacific Bell
(925)356-LandlinePacific Bell
(925)357-LandlineLevel 3 Communications
(925)358-LandlinePacific Bell
(925)359-LandlineMcimetro Access Transmission Services
(925)360-WirelessNew Cingular Wireless Pcs
(925)361-LandlineTeleport Communications America
(925)362-LandlinePacific Bell
(925)363-LandlinePacific Bell
(925)364-LandlineMcimetro Access Transmission Services
(925)365-LandlineTeleport Communications America
(925)366-WirelessSprint Spectrum
(925)367-WirelessSprint Spectrum
(925)368-WirelessSprint Spectrum
(925)369-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)370-LandlinePacific Bell
(925)371-LandlinePacific Bell
(925)372-LandlinePacific Bell
(925)373-LandlinePacific Bell
(925)374-LandlineMcimetro Access Transmission Services
(925)375-WirelessVerizon Wireless
(925)376-LandlinePacific Bell
(925)377-LandlinePacific Bell
(925)378-WirelessVerizon Wireless
(925)379-LandlineLevel 3 Telecom Of California
(925)380-LandlineLevel 3 Communications
(925)381-WirelessNew Cingular Wireless Pcs
(925)382-WirelessSprint Spectrum
(925)383-WirelessSprint Spectrum
(925)384-LandlineAt&T
(925)385-LandlineTeleport Communications America
(925)386-LandlineTeleport Communications America
(925)387-LandlineTeleport Communications America
(925)388-LandlineTeleport Communications America
(925)389-WirelessNew Cingular Wireless Pcs
(925)390-WirelessNew Cingular Wireless Pcs
(925)391-LandlineLevel 3 Communications
(925)392-LandlineTeleport Communications America
(925)393-LandlineOnvoy
(925)394-LandlineGlobal Crossing Local Services
(925)395-LandlineTeleport Communications America
(925)396-LandlineOnvoy
(925)397-LandlineOnvoy
(925)398-LandlineTeleport Communications America
(925)399-LandlineComcast Ip Phone
(925)400-LandlineBandwidth.Com Clec
(925)401-LandlineMcimetro Access Transmission Services
(925)402-LandlineMcimetro Access Transmission Services
(925)403-LandlineMcimetro Access Transmission Services
(925)404-LandlineMcimetro Access Transmission Services
(925)405-LandlineMcimetro Access Transmission Services
(925)406-LandlineMcimetro Access Transmission Services
(925)407-LandlineMcimetro Access Transmission Services
(925)408-WirelessNew Cingular Wireless Pcs
(925)409-WirelessVerizon Wireless
(925)410-LandlineTpx Communications
(925)412-WirelessVerizon Wireless
(925)413-WirelessNew Cingular Wireless Pcs
(925)414-WirelessVerizon Wireless
(925)415-LandlineLevel 3 Communications
(925)416-LandlinePacific Bell
(925)417-LandlinePacific Bell
(925)418-LandlineLevel 3 Communications
(925)419-LandlineAmerican Messaging Services
(925)420-LandlineOnvoy
(925)421-LandlineBandwidth.Com Clec
(925)422-LandlinePacific Bell
(925)423-LandlinePacific Bell
(925)424-LandlinePacific Bell
(925)425-LandlineTeleport Communications America
(925)426-LandlinePacific Bell
(925)427-LandlinePacific Bell
(925)428-WirelessT-Mobile Usa
(925)429-LandlineLevel 3 Communications
(925)430-LandlineComcast Ip Phone
(925)431-LandlinePacific Bell
(925)432-LandlinePacific Bell
(925)433-LandlineComcast Ip Phone
(925)434-LandlinePeerless Network Of California
(925)435-WirelessT-Mobile Usa
(925)436-WirelessT-Mobile Usa
(925)437-WirelessNew Cingular Wireless Pcs
(925)438-LandlineTpx Communications
(925)439-LandlinePacific Bell
(925)440-WirelessVerizon Wireless
(925)441-LandlineTpx Communications
(925)443-LandlinePacific Bell
(925)444-LandlineTpx Communications
(925)445-WirelessT-Mobile Usa
(925)446-WirelessSprint Spectrum
(925)447-LandlinePacific Bell
(925)448-WirelessVerizon Wireless
(925)449-LandlinePacific Bell
(925)450-LandlineBandwidth.Com Clec
(925)451-WirelessNew Cingular Wireless Pcs
(925)452-LandlineTpx Communications
(925)453-LandlineMcimetro Access Transmission Services
(925)454-LandlinePacific Bell
(925)455-LandlinePacific Bell
(925)456-LandlinePacific Bell
(925)457-WirelessSprint Spectrum
(925)458-LandlinePacific Bell
(925)459-LandlineLevel 3 Communications
(925)460-LandlinePacific Bell
(925)461-LandlinePacific Bell
(925)462-LandlinePacific Bell
(925)463-LandlinePacific Bell
(925)464-WirelessVerizon Wireless
(925)465-LandlineLevel 3 Communications
(925)466-LandlineFractel
(925)467-LandlinePacific Bell
(925)468-LandlinePacific Bell
(925)469-LandlinePacific Bell
(925)470-LandlineTeleport Communications America
(925)471-LandlineGetgo Communications
(925)472-LandlinePacific Bell
(925)473-LandlinePacific Bell
(925)474-LandlineTpx Communications
(925)475-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)476-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)477-WirelessT-Mobile Usa
(925)478-LandlineLevel 3 Communications
(925)479-LandlinePacific Bell
(925)480-LandlineTpx Communications
(925)481-WirelessNew Cingular Wireless Pcs
(925)482-LandlineTpx Communications
(925)483-LandlineComcast Ip Phone
(925)484-LandlinePacific Bell
(925)485-LandlinePacific Bell
(925)487-WirelessNew Cingular Wireless Pcs
(925)488-LandlinePeerless Network Of California
(925)489-WirelessT-Mobile Usa
(925)490-LandlineBandwidth.Com Clec
(925)492-LandlineCommio
(925)493-LandlineTeleport Communications America
(925)494-LandlineBandwidth.Com Clec
(925)495-LandlineBandwidth.Com Clec
(925)496-LandlineBandwidth.Com Clec
(925)497-LandlineMetropcs
(925)498-LandlineTpx Communications
(925)499-LandlineMcimetro Access Transmission Services
(925)500-LandlineOnvoy
(925)501-WirelessT-Mobile Usa
(925)502-WirelessNew Cingular Wireless Pcs
(925)503-WirelessT-Mobile Usa
(925)504-WirelessNew Cingular Wireless Pcs
(925)505-WirelessDish Wireless
(925)506-WirelessT-Mobile Usa
(925)507-WirelessVerizon Wireless
(925)509-WirelessUsa Mobility Wireless
(925)510-WirelessSprint Spectrum
(925)513-LandlinePacific Bell
(925)515-LandlineOnvoy
(925)516-LandlinePacific Bell
(925)517-LandlineOnvoy
(925)518-WirelessSprint Spectrum
(925)519-WirelessVerizon Wireless
(925)520-LandlinePacific Bell
(925)521-LandlinePacific Bell
(925)522-LandlinePacific Bell
(925)523-LandlinePacific Bell
(925)524-LandlinePacific Bell
(925)525-WirelessSprint Spectrum
(925)526-LandlineTpx Communications
(925)527-LandlineUtility Telecom Group
(925)528-WirelessSprint Spectrum
(925)529-LandlineOnvoy
(925)532-LandlineTelnyx
(925)533-LandlineFractel
(925)534-LandlineLevel 3 Communications
(925)535-WirelessSprint Spectrum
(925)536-LandlineTelnyx
(925)537-LandlineTon80 Communications
(925)542-WirelessVerizon Wireless
(925)543-LandlinePacific Bell
(925)546-LandlineTon80 Communications
(925)548-WirelessNew Cingular Wireless Pcs
(925)549-WirelessNew Cingular Wireless Pcs
(925)550-WirelessNew Cingular Wireless Pcs
(925)551-LandlinePacific Bell
(925)552-LandlinePacific Bell
(925)553-LandlineXo California
(925)556-LandlinePacific Bell
(925)557-LandlineMcimetro Access Transmission Services
(925)558-LandlineXo California
(925)560-LandlinePacific Bell
(925)565-LandlineMetropcs
(925)566-LandlineTeleport Communications America
(925)567-WirelessSprint Spectrum
(925)568-LandlineTeleport Communications America
(925)570-WirelessSprint Spectrum
(925)571-LandlineNorth County Communication
(925)572-LandlineNorth County Communication
(925)573-LandlineNorth County Communication
(925)574-LandlineTpx Communications
(925)575-WirelessSprint Spectrum
(925)577-WirelessT-Mobile Usa
(925)578-LandlineTon80 Communications
(925)579-LandlineMcimetro Access Transmission Services
(925)580-WirelessSprint Spectrum
(925)583-LandlineTpx Communications
(925)584-WirelessSprint Spectrum
(925)586-WirelessVerizon Wireless
(925)587-LandlineTpx Communications
(925)588-LandlineTpx Communications
(925)590-LandlineOnvoy Spectrum
(925)592-LandlineTpx Communications
(925)594-LandlineMetropcs
(925)595-WirelessSprint Spectrum
(925)596-WirelessVerizon Wireless
(925)597-WirelessVerizon Wireless
(925)598-LandlinePacific Bell
(925)599-LandlineFractel
(925)600-LandlinePacific Bell
(925)602-LandlinePacific Bell
(925)603-LandlinePacific Bell
(925)605-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)606-LandlinePacific Bell
(925)608-LandlineLevel 3 Communications
(925)609-LandlinePacific Bell
(925)621-LandlineTpx Communications
(925)623-WirelessSprint Spectrum
(925)625-LandlinePacific Bell
(925)626-LandlineMcimetro Access Transmission Services
(925)627-LandlineTpx Communications
(925)628-WirelessVerizon Wireless
(925)631-LandlinePacific Bell
(925)633-LandlineFractel
(925)634-LandlinePacific Bell
(925)635-LandlineTeleport Communications America
(925)639-WirelessT-Mobile Usa
(925)640-WirelessNew Cingular Wireless Pcs
(925)642-WirelessNew Cingular Wireless Pcs
(925)643-LandlineTpx Communications
(925)644-LandlineFractel
(925)646-LandlinePacific Bell
(925)648-LandlinePacific Bell
(925)655-LandlineFractel
(925)658-LandlineTeleport Communications America
(925)659-LandlineTeleport Communications America
(925)660-LandlineLevel 3 Telecom Of California
(925)663-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)664-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)665-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)666-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)667-LandlineTpx Communications
(925)671-LandlinePacific Bell
(925)672-LandlinePacific Bell
(925)673-LandlinePacific Bell
(925)674-LandlinePacific Bell
(925)675-LandlinePacific Bell
(925)676-LandlinePacific Bell
(925)677-LandlinePacific Bell
(925)678-LandlineTpx Communications
(925)679-LandlinePacific Bell
(925)680-LandlinePacific Bell
(925)681-LandlinePacific Bell
(925)682-LandlinePacific Bell
(925)683-WirelessNew Cingular Wireless Pcs
(925)684-LandlinePacific Bell
(925)685-LandlinePacific Bell
(925)686-LandlinePacific Bell
(925)687-LandlinePacific Bell
(925)688-LandlinePacific Bell
(925)689-LandlinePacific Bell
(925)690-LandlineMcimetro Access Transmission Services
(925)691-LandlinePacific Bell
(925)692-LandlinePacific Bell
(925)693-LandlineTeleport Communications America
(925)694-LandlineMcimetro Access Transmission Services
(925)695-LandlineTpx Communications
(925)698-WirelessNew Cingular Wireless Pcs
(925)699-WirelessNew Cingular Wireless Pcs
(925)701-LandlineTpx Communications
(925)705-LandlineMetropcs
(925)706-LandlinePacific Bell
(925)708-WirelessVerizon Wireless
(925)709-LandlinePacific Bell
(925)718-LandlineOnvoy
(925)719-WirelessVerizon Wireless
(925)722-LandlineFractel
(925)723-LandlineTpx Communications
(925)724-LandlineTpx Communications
(925)725-LandlineTpx Communications
(925)726-LandlineTpx Communications
(925)727-LandlineTpx Communications
(925)730-LandlinePacific Bell
(925)732-LandlineOnvoy
(925)733-LandlineFractel
(925)734-LandlinePacific Bell
(925)735-LandlinePacific Bell
(925)736-LandlinePacific Bell
(925)737-LandlinePacific Bell
(925)738-LandlineMcimetro Access Transmission Services
(925)742-LandlineAmerican Messaging Services
(925)743-LandlinePacific Bell
(925)744-LandlineFractel
(925)746-LandlinePacific Bell
(925)750-LandlineMcimetro Access Transmission Services
(925)752-LandlineMcimetro Access Transmission Services
(925)753-LandlinePacific Bell
(925)754-LandlinePacific Bell
(925)755-LandlinePacific Bell
(925)756-LandlinePacific Bell
(925)757-LandlinePacific Bell
(925)758-LandlineFractel
(925)759-WirelessNew Cingular Wireless Pcs
(925)762-LandlinePacific Bell
(925)765-WirelessSprint Spectrum
(925)766-WirelessSprint Spectrum
(925)768-WirelessVerizon Wireless
(925)771-LandlineTpx Communications
(925)775-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)776-LandlinePacific Bell
(925)777-LandlinePacific Bell
(925)778-LandlinePacific Bell
(925)779-LandlinePacific Bell
(925)783-WirelessVerizon Wireless
(925)784-WirelessVerizon Wireless
(925)785-WirelessVerizon Wireless
(925)786-WirelessVerizon Wireless
(925)787-WirelessVerizon Wireless
(925)788-WirelessVerizon Wireless
(925)789-WirelessVerizon Wireless
(925)790-LandlinePacific Bell
(925)791-LandlineTpx Communications
(925)794-LandlineOnvoy
(925)798-LandlinePacific Bell
(925)799-LandlineFractel
(925)800-LandlineOnvoy
(925)803-LandlinePacific Bell
(925)804-LandlineTeleport Communications America
(925)806-LandlinePacific Bell
(925)807-LandlineXo California
(925)808-LandlinePacific Bell
(925)809-LandlineTpx Communications
(925)812-LandlineMetropcs
(925)813-WirelessVerizon Wireless
(925)815-LandlinePacific Bell
(925)817-LandlinePacific Bell
(925)818-WirelessNew Cingular Wireless Pcs
(925)819-WirelessNew Cingular Wireless Pcs
(925)820-LandlinePacific Bell
(925)822-LandlineMcimetro Access Transmission Services
(925)823-LandlinePacific Bell
(925)824-LandlinePacific Bell
(925)825-LandlinePacific Bell
(925)826-LandlineMcimetro Access Transmission Services
(925)827-LandlinePacific Bell
(925)828-LandlinePacific Bell
(925)829-LandlinePacific Bell
(925)830-LandlinePacific Bell
(925)831-LandlinePacific Bell
(925)832-LandlineTon80 Communications
(925)833-LandlinePacific Bell
(925)834-LandlineTon80 Communications
(925)835-LandlineTpx Communications
(925)837-LandlinePacific Bell
(925)838-LandlinePacific Bell
(925)839-LandlineTpx Communications
(925)842-LandlinePacific Bell
(925)843-LandlineLevel 3 Telecom Of California
(925)844-LandlineTpx Communications
(925)846-LandlinePacific Bell
(925)847-LandlinePacific Bell
(925)848-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)849-LandlineTpx Communications
(925)852-LandlineXo California
(925)854-LandlineMcimetro Access Transmission Services
(925)855-LandlinePacific Bell
(925)856-LandlineMcimetro Access Transmission Services
(925)858-WirelessNew Cingular Wireless Pcs
(925)860-LandlineXo California
(925)862-LandlinePacific Bell
(925)864-WirelessSprint Spectrum
(925)866-LandlinePacific Bell
(925)867-LandlinePacific Bell
(925)871-LandlineOnvoy
(925)872-WirelessVerizon Wireless
(925)875-LandlinePacific Bell
(925)876-WirelessNew Cingular Wireless Pcs
(925)877-LandlineFractel
(925)878-WirelessSprint Spectrum
(925)880-LandlineFractel
(925)884-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)885-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)886-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)887-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)888-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)889-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)890-WirelessNew Cingular Wireless Pcs
(925)891-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)892-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)895-WirelessSprint Spectrum
(925)897-WirelessT-Mobile Usa
(925)899-WirelessNew Cingular Wireless Pcs
(925)900-LandlineOnvoy
(925)901-LandlinePacific Bell
(925)904-LandlinePacific Bell
(925)905-LandlineMatrix Telecom, Llc. S/I/I Tnci
(925)906-LandlinePacific Bell
(925)913-WirelessT-Mobile Usa
(925)914-WirelessT-Mobile Usa
(925)915-WirelessT-Mobile Usa
(925)917-WirelessT-Mobile Usa
(925)918-WirelessVerizon Wireless
(925)920-WirelessUsa Mobility Wireless
(925)922-WirelessT-Mobile Usa
(925)924-LandlinePacific Bell
(925)925-LandlineOnvoy
(925)926-LandlinePacific Bell
(925)927-LandlinePacific Bell
(925)930-LandlinePacific Bell
(925)931-LandlinePacific Bell
(925)932-LandlinePacific Bell
(925)933-LandlinePacific Bell
(925)934-LandlinePacific Bell
(925)935-LandlinePacific Bell
(925)937-LandlinePacific Bell
(925)938-LandlinePacific Bell
(925)939-LandlinePacific Bell
(925)940-LandlineOnvoy
(925)941-LandlinePacific Bell
(925)942-LandlinePacific Bell
(925)943-LandlinePacific Bell
(925)944-LandlinePacific Bell
(925)945-LandlinePacific Bell
(925)946-LandlinePacific Bell
(925)947-LandlinePacific Bell
(925)948-LandlineMcimetro Access Transmission Services
(925)949-LandlineTeleport Communications America
(925)951-LandlineMcimetro Access Transmission Services
(925)952-LandlinePacific Bell
(925)953-LandlineLevel 3 Telecom Of California
(925)954-LandlineTpx Communications
(925)955-LandlineUtility Telecom Group
(925)956-LandlineXo California
(925)957-LandlinePacific Bell
(925)960-LandlinePacific Bell
(925)961-LandlinePacific Bell
(925)962-LandlinePacific Bell
(925)963-WirelessNew Cingular Wireless Pcs
(925)964-LandlinePacific Bell
(925)965-LandlineTeleport Communications America
(925)966-LandlineFractel
(925)967-LandlinePacific Bell
(925)968-LandlinePacific Bell
(925)969-LandlinePacific Bell
(925)973-LandlinePacific Bell
(925)974-LandlinePacific Bell
(925)975-LandlinePacific Bell
(925)977-LandlinePacific Bell
(925)978-LandlinePacific Bell
(925)979-LandlinePacific Bell
(925)980-WirelessNew Cingular Wireless Pcs
(925)983-LandlineMcimetro Access Transmission Services
(925)984-WirelessSprint Spectrum
(925)988-LandlinePacific Bell
(925)989-WirelessVerizon Wireless
(925)990-LandlineUtility Telecom Group
(925)993-LandlineWide Voice
(925)997-WirelessNew Cingular Wireless Pcs
(925)998-WirelessNew Cingular Wireless Pcs
(925)999-WirelessVerizon Wireless

Frequently Asked Questions about the 925 Area Code

Who called me from a 925 number?

23% of its assigned prefixes are wireless. Largest holders: Pacific Bell, New Cingular Wireless Pcs, and Tpx Communications.

Is 925 a scam area code?

Carriers hold 62% of its possible prefixes.

Why do I keep getting calls from the 925 area code?

Complaints fell 5% on the prior period.

Should I answer an unknown 925 number?

66% of its FTC complaints were robocalls. Its most-reported specific subject was "Dropped call or no message", at 13%.

How do I block calls from the 925 area code?

Blocking 925 blocks numbers in 41 cities.

Where is area code 925?

925 covers 41 cities and 1,134,632 residents in Contra Costa and Alameda counties, California.

When did area code 925 go into service?

925 went into service on March 14, 1998. It was split from 510.

Is 925 a real area code?

Yes: 34 carriers hold its prefixes, serving 41 cities in Contra Costa and Alameda counties.

What timezone is the 925 area code in?

925 is on Pacific Time (PT).

How do I call a 925 number from abroad?

Dial +1 925, then the number.

Related Area Codes