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Area code 925

Area code 925 serves California, including Walnut Creek, Concord and Pleasanton (Pacific time). It has been in service since March 14, 1998.

Numbers starting with 925 drew 2,025 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 464 complaints to the FCC since November 2023. The number on your screen can be faked, so a 925 number proves nothing about where a call came from.

Location
CaliforniaSan Francisco-Oakland-Fremont, CA Metropolitan Statistical Area
Time zone
Pacific
In service since
March 14, 1998Created from 510
Overlay
None: the only code for its area
Local calls
Dial 1 + 10 digits
Exchanges in use
640 of 792held by 32 carriers
Projected to run out
1Q 2047NANPA forecast 2026.2

Complaints about 925 numbers

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 925. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

2,025

FCC complaints since November 2023

464

Different 925 numbers reported

2,315

FCC complaints naming a 925 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 202315
December 20236
January 20249
February 20247
March 20246
April 202419
May 202417
June 20247
July 20248
August 202412
September 20248
October 202412
November 20249
December 20248
January 202515
February 202510
March 202512
April 202516
May 202515
June 202511
July 202520
August 202518
September 202519
October 20251
November 20253
December 202510
January 202616
February 20269
March 202612
April 20269
May 20267
June 202617
July 202615
August 202620
September 202618
October 202632

What people said 925 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 1,362 of 2,025 reports were robocalls.

Show as a table
SubjectReports
Other1,034
Reducing your debt (credit cards, mortgage, student loans)284
Dropped call or no message238
Calls pretending to be government, businesses, or family and friends163
Medical and prescriptions87
Energy, solar, and utilities49

Most reported 925 numbers

Numbers with at least five reports from three or more places in the last twelve months. Many of them are likely spoofed.

Places served by 925

NANPA lists 17 rate centers for 925. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • Walnut Creek103
  • Concord89
  • Pleasanton76
  • Antioch67
  • Livermore50
  • Bishop Ranch43
  • Dublin-San Ramon42
  • Danville38
  • East Contra Costa22
  • Martinez22
  • Pittsburg19
  • Lafayette15
  • Clayton12
  • Orinda12
  • Moraga11
  • Pittsburg West10
  • Sunol9

Phone companies holding 925 exchanges

Each exchange (the three digits after the area code) is assigned to one carrier. 70% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

Exchanges held, top 8 of 32 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Pacific Bell206
New Cingular Wireless PCS, LLC48
T-Mobile USA, Inc.44
Mcimetro Access Transmission Services LLC39
Cellco Partnership dba Verizon Wireless - CA38
U.S. Telepacific Corp. dba Tpx Communications37
Level 3 Communications, LLC - CA34
Onvoy, LLC - CA32

When today's 925 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
200134
200213
20071
20081
20091
20101
20115
20124
20134
20147
20155
20166
20177
20183
20199
20209
202112
202210
202310
20246
20252
202611

Check a 925 number

A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.

Other area codes in California

NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.

Official sources (7)Show