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Get a local business phone number in Pleasanton, CA

Pleasanton's area code, prefixes and carriers from NANPA records, and how to put a Pleasanton number in front of your customers.

Area code
925
Exchanges
76NANPA-assigned
Carriers
16
Population
75,664Census 2024 est.

Pleasanton area codes

Pleasanton, in Alameda County, California, had a Census-estimated population of 75,664 in July 2024. All 76 exchanges NANPA lists for its rate center are in area code 925. Pleasanton is in the Pacific time zone.

According to NANPA's dialing-plan data, local calls within 925 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.

Area codes with exchanges in Pleasanton, CA
Area codeExchanges hereShareIn service sinceOverlay withTime zone
92576100%1998nonePacific

Source: NANPA utilized central office code file and NPA report, dated 10/01/2026.

Pleasanton exchanges by carrier

16 carriers hold the 76 exchanges assigned to Pleasanton's rate center. Pacific Bell has the most, with 28. 51 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Carriers holding exchanges in Pleasanton, CA
Carrier (NANPA operating company)ExchangesShare
Pacific Bell2837%
T-mobile USA, INC.1013%
Cellco Partnership d/b/a Verizon Wireless - CA67.9%
Mcimetro Access Transmission Services LLC67.9%
U.s. Telepacific Corp. d/b/a TPX Communications56.6%
Teleport Communications America, LLC - CA45.3%
New Cingular Wireless PCS, LLC45.3%
Level 3 Communications, LLC - CA22.6%
Level 3 Telecom of California, LP - CA22.6%
Onvoy, LLC - CA22.6%
Matrix Telecom, LLC. S/i/i Tnci - CA22.6%
American Messaging Services, LLC11.3%

Carrier names are the operating company (OCN) names on NANPA's utilized central office code file dated 10/01/2026. A carrier holding a code may port numbers to other carriers.

Pleasanton phone prefixes

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Pleasanton. The earliest assignment date recorded in the file for these codes is 2001. 1 of the 76 were assigned in 2020 or later.

Prefixes assigned in Pleasanton, CA
Area codePrefixes (NXX)
925200, 201, 202, 209, 218, 223, 224, 225, 226, 227, 249, 251, 264, 271, 343, 351, 352, 353, 366, 367, 368, 379, 396, 397, 398, 399, 400, 401, 410, 416, 417, 425, 426, 460, 461, 462, 463, 467, 468, 469, 474, 475, 484, 485, 519, 520, 523, 535, 572, 580, 596, 598, 600, 621, 623, 660, 694, 699, 701, 730, 734, 737, 738, 750, 846, 847, 872, 892, 918, 922, 924, 931, 963, 965, 989, 998

Source: NANPA utilized central office code file.

When Pleasanton's exchanges were assigned

Assignment dates show when each block of Pleasanton numbers was added to the local supply.

Pleasanton, CA: exchanges by decade assigned
Decade assignedExchangesShare
2000s360%
2010s120%
2020s120%

Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.

How local numbers work in Pleasanton

What a caller sees as "local" is the area code plus prefix. In Pleasanton, those come from the PLEASANTON rate center, as recorded by NANPA.

Keeping an existing Pleasanton number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 925 when you pick it.

The local business market

Pleasanton is part of the San Francisco-Oakland-Fremont, CA metro area, home to 4.6 million people in 2024. County Business Patterns counted 133,246 business establishments in the San Francisco, CA metro area in 2023, employing 2,417,363 people. The largest sectors by establishment count are professional, scientific, and technical services (23,140), health care and social assistance (16,920), and accommodation and food services (13,736).

Selected industries in the San Francisco, CA metro area, 2023
IndustryEstablishmentsEmployeesEmployees per establishment
Full-service restaurants5,13686,43416.8
Limited-service restaurants4,14059,84914.5
Dental offices3,02919,2256.3
Offices of real estate agents and brokers2,99010,4543.5
Law offices2,98425,8028.6
Custom computer programming services firms2,95958,99519.9
Residential remodelers2,92414,1844.9
Management consulting firms2,75616,9526.2

Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.

Business phone service in Pleasanton

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

If you already have a number in Pleasanton, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

An 18-person team is the benchmark here, the rounded average establishment size in the San Francisco, CA metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $540.00 a month and Ooma Office Pro $449.10. On Callata the same 18 people cost $359.00 a month, less than either per-seat plan.

Monthly list price for an 18-person team
Provider (plan)Pricing basisPer monthPer year
Callata (Callata Office)$99 incl. 5 users, $20 per extra user$359.00$4,308.00
Quo (Starter)$19.00 per user$342.00$4,104.00
Nextiva (Core)$23.00 per user$414.00$4,968.00
Ooma (Office Pro)$24.95 per user$449.10$5,389.20
Dialpad (Standard)$27.00 per user$486.00$5,832.00
RingCentral (RingEX Core)$30.00 per user$540.00$6,480.00

Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.

Frequently asked questions

What area code is Pleasanton, CA?

925. All exchanges NANPA lists for Pleasanton are in 925.

How many phone companies have exchanges in Pleasanton?

16, holding 76 exchanges between them, according to NANPA's 10/01/2026 file.

Can I keep my existing Pleasanton business number?

Yes. Porting an existing number to Callata is free. Texting from it starts after carrier registration (10DLC), a one-time $49 fee.

How much is a business phone line in Pleasanton?

Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 18 users come to $359.00 a month. For comparison, 18 users on RingCentral RingEX Core list at $540.00 a month (checked September 28, 2026).