925 Area Code
Covers Concord and nearby communities in California.
(925) 555-0142Area code 925 map
Interactive coverage map for area code 925, centered on Concord, California
37.9780, -122.0311
Open in OpenStreetMapArea code 925 coverage map — centered on Concord. Shaded area shows the approximate reach around the primary city.
If you are trying to place Concord, CA on the map, area code 925 is the one that covers it. It reaches roughly 826,000 people across places such as Concord, Antioch, Livermore, San Ramon and more. The region observes Pacific time, so a number like (925) 555-0142 is on that clock right now. On the ground it spans Contra Costa, Alameda. It is not currently paired with an overlay code. Local calls inside the 925 area can generally be placed with ten digits, and you do not need a leading 1 for domestic calls. Keep reading for the current local time in Concord, a map of the 925 coverage area, the places it reaches, nearby and overlay codes, and how to tell a real 925 call from a scam.
Cities covered by 925
Cities & neighborhoods
- Concord
- Antioch
- Livermore
- San Ramon
- Pleasanton
- Walnut Creek
- Pittsburg
- Brentwood
- Dublin
- Danville
- Oakley
- Martinez
- Bay Point
- Lafayette
- Pleasant Hill
Nearby & overlay area codes
Overlay codes (same area)
These share 925’s geography — a number in either code can be on the same street.
925 has no overlay code right now.
Neighboring codes
Codes for adjacent regions and metros.
Is a call from 925 a scam?
Area code 925 serves Concord and the surrounding area, so most calls are ordinary local and business traffic. As everywhere, spam and robocalls do use 925 numbers, frequently by spoofing a local-looking caller ID to boost pickup rates. The area code itself tells you nothing about who is really calling, so judge the call by what's said, not the number.
Red flags to watch for
- Pressure to act right now, or threats of arrest, fines, or service being cut off.
- Requests to pay with gift cards, wire transfer, crypto, or a payment app.
- Asking for passwords, one-time codes, your SSN, or full card/bank numbers.
- A robocall or recording, or a number that won’t let you call back.
When unsure, hang up and call the organization back on a number you look up yourself.
Calling a 925 number from abroad
Every 925 number is a US/Canada +1 number. From a mobile anywhere, the simplest approach is to dial it in international format:
+1 925 555-0142If your phone can’t dial the +, replace it with your country’s exit code, then 1, then the number:
- UK, Germany, France & most of Europe
00 1 925 555-0142 - Australia
0011 1 925 555-0142 - Japan
010 1 925 555-0142 - Mexico
00 1 925 555-0142
Within the US and Canada you don’t need any of this — just dial the ten digits 925 555-0142.
Reverse phone lookup
Check any US or Canada number to see whether it's a working line, which carrier it sits on, whether it's mobile, landline or VoIP, and roughly where it's registered.
Shows carrier, line type and location. Owner name isn't available here.
Results are for personal, informational use only and may not be used for employment, credit, housing or tenant-screening decisions.
Area code 925: frequently asked questions
Where is the 925 area code located?
The 925 area code is located in California, centered on Concord. It covers Contra Costa, Alameda and nearby communities including Concord, Antioch, Livermore, San Ramon, Pleasanton, Walnut Creek.
What time zone is 925 in?
Area code 925 is in the Pacific time zone (UTC-8 (PST) / UTC-7 (PDT)). You can see the exact current local time for Concord on the live clock above.
What cities use area code 925?
Cities and areas that use 925 include Concord, Antioch, Livermore, San Ramon, Pleasanton, Walnut Creek. Its primary city is Concord, CA.
Do I need to dial 1 before 925?
You generally do not need to dial a leading 1 for domestic calls to 925. Ten-digit dialing (the 925 code plus the seven-digit number) is the safest habit.
Is 925 a toll-free or scam number?
No — 925 is a normal geographic area code for Concord, not a toll-free code (toll-free codes are 800, 833, 844, 855, 866, 877 and 888). A 925 number is not inherently a scam, but the code can be spoofed. See the spam-call section above for how to tell.
What are the overlay area codes for 925?
Area code 925 does not currently have an overlay code; it is not layered on top of another code in the same area.