CallataGuidesGet a local business phone number in Oakdale, CA
Oakdale's area codes, prefixes and carriers from NANPA records, and how to put a Oakdale number in front of your customers.
- Area code
- 209 / 350
- Exchanges
- 13NANPA-assigned
- Carriers
- 9
- Population
- 23,209Census 2024 est.
Area codes in Oakdale
With 23,209 residents in the Census 2024 estimate, Oakdale sits in Stanislaus County, California. NANPA lists 13 exchanges for its rate center across 2 area codes; 209 has the most (11, 85%). 209 is part of an overlay with 350, so a new local number in Oakdale may carry any of those codes depending on which have numbers available. Oakdale is in the Pacific time zone.
According to NANPA's dialing-plan data, local calls within 209 are dialed as 1 plus ten digits and toll calls as 1 plus ten digits.
Phone carriers in Oakdale
9 carriers hold the 13 exchanges assigned to Oakdale's rate center. T-mobile USA, INC. has the most, with 3. 12 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.
| Carrier (NANPA operating company) | Exchanges | Share |
|---|---|---|
| T-mobile USA, INC. | 3 | 23% |
| Pacific Bell | 3 | 23% |
| Comcast Phone of California, LLC | 1 | 7.7% |
| Peerless Network of California, LLC - CA | 1 | 7.7% |
| Cellco Partnership d/b/a Verizon Wireless - CA | 1 | 7.7% |
| Ip Horizon LLC | 1 | 7.7% |
| Onvoy, LLC - CA | 1 | 7.7% |
| New Cingular Wireless PCS, LLC | 1 | 7.7% |
| Onvoy Spectrum, LLC | 1 | 7.7% |
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.
Exchanges (NPA-NXX) assigned in Oakdale
A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Oakdale. The earliest assignment date recorded in the file for these codes is 2002. 3 of the 13 were assigned in 2020 or later.
| Area code | Prefixes (NXX) |
|---|---|
| 209 | 318, 322, 493, 764, 840, 841, 844, 845, 847, 848, 919 |
| 350 | 251, 600 |
Source: NANPA utilized central office code file.
When Oakdale's exchanges were assigned
Assignment dates show when each block of Oakdale numbers was added to the local supply.
| Decade assigned | Exchanges | Share |
|---|---|---|
| 2000s | 1 | 17% |
| 2010s | 2 | 33% |
| 2020s | 3 | 50% |
Assignment dates as recorded in NANPA's utilized code file; codes without a recorded date are excluded.
How local numbers work in Oakdale
NANPA ties every exchange to a rate center. For Oakdale that is OAKDALE, so a number from one of these exchanges reads as local to people in and around Oakdale.
If your business already has a Oakdale number, porting it to Callata is free and keeps it on your cards, listings and vehicles.
The local business market
Oakdale is part of the Modesto, CA metro area, home to 557,000 people in 2024. County Business Patterns counted 10,013 business establishments in the Modesto, CA metro area in 2023, employing 152,942 people. The largest sectors by establishment count are retail trade (1,477), health care and social assistance (1,259), and accommodation and food services (1,071).
| Industry | Establishments | Employees | Employees per establishment |
|---|---|---|---|
| Limited-service restaurants | 432 | 8,393 | 19.4 |
| Full-service restaurants | 315 | 6,131 | 19.5 |
| Physician practices | 276 | 3,590 | 13.0 |
| Dental offices | 248 | 2,074 | 8.4 |
| General freight trucking companies (local) | 216 | 884 | 4.1 |
| Insurance agencies and brokerages | 180 | 856 | 4.8 |
| Offices of real estate agents and brokers | 154 | 310 | 2.0 |
| General automotive repair shops | 154 | 635 | 4.1 |
Selected small-business industries (six-digit NAICS) covered by these guides. Source: Census County Business Patterns 2023.
Business phone service in Oakdale
For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.
If you already have a number in Oakdale, 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.
The comparison below uses 15 users, the rounded average establishment size in the Modesto, CA metro area. At list prices checked September 28, 2026, that is $374.25 a month on Ooma Office Pro and $450.00 on RingCentral RingEX Core. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
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 Oakdale, CA?
Oakdale has exchanges in 209 and 350; 209 has the most.
How many phone companies have exchanges in Oakdale?
9, holding 13 exchanges between them, according to NANPA's 10/01/2026 file.
Can I keep my existing Oakdale 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 Oakdale?
Callata is $99 a month with 5 users included, then $20 per additional user, with up to 3 local numbers; 15 users come to $299.00 a month. For comparison, 15 users on RingCentral RingEX Core list at $450.00 a month (checked September 28, 2026).