925 area code
Where the 925 area code is, its overlay and how to dial a +1 925 number from anywhere.
The 925 area code is in Antioch, California, United States (Pacific (PT)). To call from abroad: +1 925 555-0123.
The 925 area code is a geographic North American Numbering Plan (NANP) code covering Antioch, California. It has been in service since 19-May-1997 and sits in the Pacific (PT) time zone.
How to dial a 925 number
+1 925 555-01231 925 555-0123925 555-0123Cities in the 925 area code
A 925 number is usually in one of these places in California — 2 counties.
Other California area codes
Frequently asked questions
Where is the 925 area code?
The 925 area code is in Antioch, California, United States (Pacific (PT)).
Do I have to dial 10 digits for 925?
Yes — dial the area code plus the seven-digit number.
How do I call a 925 number from another country?
Dial your exit code (or +), then 1, then 925, then the number: +1 925 555-0123.
Source: NANPA numbering plan. An area code covers a region, not a precise address — a 925 number does not pinpoint a street or ZIP code.
Number holders in area code 925
Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 655 prefixes are in use in 925, shared by 35 companies. The largest holders:
| Company | Prefixes | Share |
|---|---|---|
| Pacific Bell | 206 | 31% |
| New Cingular Wireless PCS, LLC | 48 | 7% |
| T-Mobile USA, Inc. | 44 | 7% |
| Mcimetro Access Transmission Services LLC | 39 | 6% |
| Cellco Partnership Dba Verizon Wireless | 38 | 6% |
| U.S. Telepacific Corp. Dba Tpx Communications | 37 | 6% |
Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.
Complaints about 925 numbers
- Reports to the FTC, last 30 days
- 595
- Recorded messages or robocalls
- 66%
- Rank among area codes
- #141 of 670
- Most reported subjects
- Other (283)
- Dropped call or no message (81)
- Reducing your debt (credit cards, mortgage, student loans) (73)
Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.
Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).
All US area codes United States +1 Map of area code 925 — cities & rate centres