The 209 area code covers Stockton, Modesto and 53 more places in California.
Area code 209 is in California, on Pacific Time. In the 209 area, phone numbers are given out most in San Joaquin County, then Stanislaus and Merced counties. It has been in service since 1958. 350 covers the same area, so two neighbours can have different area codes.
- Where
- 8 counties in California, mostly San Joaquin County, Stanislaus County and Merced County
- Time zone
- Pacific Time
- In service since
- 1958
- Shares its area with
- 350 (since 2022)
- Prefixes in use
- 784
- How to dial
- Local calls need 1, then the area code, then the number: 1-209-555-0142.
Find out who called you from a 209 number.
Enter the full 10-digit number to see who it is listed to and the city and state on the listing. It is the same free check as our who called me lookup. To see only the caller ID name on the number, use our free CNAM lookup. To see whether it is a mobile, a landline or a VoIP line, use our free VoIP checker. To see which carrier a (209) number is on today, use our free carrier lookup.
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Stockton holds 18% of the phone prefixes in area code 209.
A prefix is the three digits after the area code, and NANPA assigns each one to a town. Counting the 784 prefixes in use shows where 209 numbers are actually given out.
- Stockton138 prefixes, 18%
- Modesto137 prefixes, 17%
- Merced57 prefixes, 7%
- Manteca44 prefixes, 6%
- Lodi36 prefixes, 5%
- Tracy32 prefixes, 4%
- Turlock31 prefixes, 4%
- Angels Camp22 prefixes, 3%
Also served: Fresno, Atwater, Los Banos and Jackson and 43 smaller places.
Pacific Bell (AT&T) holds the most phone number prefixes in area code 209: 180 of 784.
NANPA, which runs the North American numbering plan, assigns each prefix (the three digits after the area code) to one carrier. Here is how the 784 prefixes in use in 209 divide between carriers; holders this page does not name are grouped as other carriers.
| Carrier | Prefixes | Share |
|---|---|---|
| Pacific Bell (AT&T)AT&T's landline company | 180 | 23% |
| AT&T MobilityMobile network | 128 | 16% |
| T-MobileMobile network | 69 | 9% |
| BandwidthSupplies numbers to VoIP and app-based phone services | 42 | 5% |
| Metro by T-MobileT-Mobile's prepaid brand | 26 | 3% |
| Level 3 (Lumen)Lumen's business and wholesale network | 23 | 3% |
| 35 other carriers | 316 | 40% |
77% of these prefixes are pooled, which means the blocks of 1,000 numbers inside them can belong to other carriers. Any number can also have been moved to another carrier since, so this shows who holds the prefixes, not who serves a given number.
Want the carrier of one exact number? Our free carrier lookup checks it, because numbers move between carriers.
Source: NANPA central office code assignments, October 1, 2026.
209 has been split once and overlaid once since 1958.
1958
209 starts, split off from 415.
1998
On November 14, 1998, 559 splits off and takes part of the 209 area.
2022
On November 28, 2022, 350 is added on top of 209, so new numbers here can get either code.
A 209 number on your screen can still be a scam, because caller ID is easy to fake.
- Let an unknown call go to voicemail. A real caller leaves a message; a robocaller usually does not.
- Look the number up with the box above before you call back, because calling back tells a robocaller your line is live.
- Hang up on anyone who wants gift cards, crypto or a wire transfer, or asks you to read out a code that was just texted to you.
- Report unwanted robocalls at reportfraud.ftc.gov, or paste a suspicious message into our free scam checker.
The area codes closest to 209 are 916, 925 and 408.
This list measures the distance between the centres of each area, across state lines, and shows codes that share one area together.
California has 40 other area codes.
These are the questions people ask most about area code 209.
Where is area code 209?
209 covers Stockton, Modesto, Merced and Manteca and 51 more places in California. In the 209 area, phone numbers are given out most in San Joaquin County, then Stanislaus and Merced counties.
What state is area code 209 in?
California. 209 is a California area code on Pacific Time.
What cities use area code 209?
The places holding the most 209 prefixes are Stockton, Modesto, Merced, Manteca, Lodi, Tracy, Turlock and Angels Camp, out of 55 places in all. The count comes from NANPA's prefix assignments as of October 1, 2026.
Which phone company owns area code 209?
No single phone company owns 209. NANPA's records show Pacific Bell (AT&T) holds the most 209 prefixes, 180 of 784, followed by AT&T Mobility and T-Mobile. Numbers move between carriers, so check one exact number with a carrier lookup.
What time zone is area code 209 in?
209 is on Pacific Time.
When did area code 209 start?
209 went into service in 1958, when it was split off from 415.
Is 209 the same area as 350?
Yes. 350 (since 2022) covers the same ground as 209. Nobody's number changed when it was added; new lines simply get whichever code has numbers left, so two neighbours can have different codes.
How do I dial a 209 number?
Local calls need 1, then the area code, then the number: 1-209-555-0142.
Is 209 a toll-free number?
No. 209 is a regular area code for Stockton and Modesto in California, not a toll-free one. The toll-free codes in North America are 800, 833, 844, 855, 866, 877 and 888.
What area codes are near 209?
The closest are 916/279 (Sacramento, California), 925 (Walnut Creek, California), 408/669 (San Jose, California) and 510/341 (Oakland, California), measured between the centres of each area.
Who called me from a 209 number?
Enter the full 10-digit number in the lookup above. It returns the listed owner where there is a public record, where the number is registered, and whether it is a mobile, a landline or a VoIP line.
Is area code 209 a scam?
209 is a real California area code, so the code itself is not a warning sign. Scam callers fake local-looking numbers on purpose, so judge the call by what the caller asks for, and look the number up before calling back.
Put this lookup on your site: our free area code widget takes two lines of code and shows any US area code's state, time zone and local time.
Source: NANPA, the North American Numbering Plan Administrator: its area code database and prefix assignments, as of October 1, 2026.