What is the 209 area code?

The 209 area code is a numbering plan area created in 1958 to relieve area code 916. It serves Stockton and the surrounding territory in California.

Where is the 209 area code located?

The 209 area code covers Stockton and neighboring communities in California, including Stockton, Modesto, Merced. See the cities and counties table above for the full list.

What time zone is the 209 area code in?

The 209 area code is in Pacific Time (UTC−8 / UTC−7), the same time zone as Stockton.

Is the 209 area code a scam?

No, the 209 area code is a regular geographic code used by residents and businesses in California. Some scam calls spoof the 209 area code, so judge each call by its content, not its code.

How do I call a 209 area code number?

Dial 1 plus the ten-digit number, for example +1 209 555 0123. Inside the territory, local calls also require ten digits. From outside North America, use your exit code, then +1.

Can I find out who owns a 209 number?

This guide identifies numbering areas, not subscribers. To identify a caller, use a callback, an official contact channel, or a reverse-lookup service — and stay cautious with unexpected calls.

209 Area Code: Location, Cities, Time Zone & Phone Lookup

Where the 209 area code is used, which cities and counties it covers in California, its time zone, overlay codes and the exact dialing format.

Quick answer

The 209 area code serves Stockton and surrounding communities in California, United States, in the Pacific Time zone (UTC−8 / UTC−7). It has been in service since 1958. Dial it as (209) 555-0123 locally or +1 209 555 0123 from abroad.

Free reference, no signup. Data reviewed against NANPA records.

Popular lookups

929 727 954 437 951

Location: Stockton, CA
Country: United States
Time zone: Pacific Time (PT)
In service: Since 1958
Code type: Split code (from 916)
Local format: (209) 555-0123
Population served: ≈ 1,600,000 residents
Service span: 68 years

Where Is the 209 Area Code?

The 209 area code is a geographic numbering plan area in the North American Numbering Plan.

The 209 area code is assigned to Stockton, the anchor city of the region, together with the surrounding communities listed below. When the 209 area code was introduced, regulators drew its boundary around the calling communities that shared a local calling area, which is why the territory follows county lines rather than city limits.

In everyday terms, if you see the 209 area code on an incoming call, the number was originally assigned in the Stockton area of California. Landlines, mobile phones and business lines in that territory can all carry the 209 area code.

The cities below are the principal municipalities served by the 209 area code. County names are included because numbering plan boundaries in California traditionally follow county lines.

Top cities at a glance

StocktonSan Joaquin County
ModestoStanislaus County
MercedMerced County
TracySan Joaquin County
MantecaSan Joaquin County

Full city and county list for the 209 area code below.

209 Area Code Cities and Counties

Major cities covered by the 209 area code, including Stockton, Modesto, Merced and more.

The 209 area code covers the communities in the table below. Together they form the local calling community for Stockton, the primary city of the numbering plan area in California.

City	County
Stockton	San Joaquin County
Modesto	Stanislaus County
Merced	Merced County
Tracy	San Joaquin County
Manteca	San Joaquin County
Turlock	Stanislaus County
Lodi	San Joaquin County
Los Banos	Merced County

City and county coverage reflects published numbering plan boundaries; individual carriers may assign numbers slightly differently within the territory.

If you are calling any of these cities from outside North America, prefix the 209 area code number with the US/Canada country code +1. Numbers are ten digits long: three for the area code plus seven for the line.

209 Area Code Time Zone

The 209 area code observes Pacific Time (PT), the same clock as Stockton.

Communities in the 209 area code follow Pacific Time: UTC−8 / UTC−7 with daylight saving time in effect from the second Sunday of March to the first Sunday of November. When scheduling a call into the 209 area code territory from Europe or Asia, check both clocks first.

A quick reference: when it is 12:00 noon in the 209 area code, it is 17:00 in London and 01:00 the next day in Tokyo during standard time. The 209 area code shares its clock with the rest of its region.

How to Dial a 209 Area Code Number

Ten digits for local calls, +1 for international calls.

Every number in the 209 area code follows the North American format: a three-digit area code plus a seven-digit local number. From inside the US or Canada, dial 1, then the 209 area code, then the seven digits — for example (209) 555-0123. In overlay regions, the ten-digit form is required even for next-door calls.

From abroad, replace the leading 1 with your international exit code and add the country code: +1 209 555 0123. Mobile phones in most countries let you store the number with the + sign so the 209 area code number dials correctly from anywhere.

Dialing format

Local / national

(209) 555-0123

International

+1 209 555 0123

555 numbers are reserved for examples; real 209 area code lines use working exchange prefixes.

Who Is Calling From the 209 Area Code?

What the 209 area code does — and does not — tell you about a caller.

A call from the 209 area code most often comes from a person or business in the Stockton area of California. The 209 area code is used by ordinary households, government offices and companies across the territory, so the code alone is not a sign of spam.

However, the 209 area code cannot prove where a caller physically is. Number portability lets a customer keep a 209 area code number after moving away, and internet calling services can assign 209 area code numbers to users anywhere in the world. Scammers can also display a fake 209 area code through caller-ID spoofing.

The safe rule: treat the 209 area code as a hint about the number's origin, never as caller verification. Let unfamiliar calls go to voicemail, and contact organizations through official numbers rather than ones that called you.

209 Area Code History

How the 209 area code came to serve California.

The 209 area code entered service in 1958 as a split from area code 916, which had served the wider region until demand for new numbers required relief. The split kept the existing 916 numbers untouched while assigning the 209 area code to new lines in the Stockton area.

Demand for telephone numbers keeps growing because every mobile line, fax machine and internet phone needs one. When a numbering plan area approaches exhaustion, regulators either split the territory or overlay a new code on top of it — which is why the 209 area code boundary looks the way it does today.

209 Area Code Overlays and Neighbors

Codes that share territory with the 209 area code or border its region.

Neighboring codes

559916530350

FAQ

209 Area Code FAQ

The most common questions about the 209 area code, answered briefly.

Data sources: NANPA (North American Numbering Plan Administration) numbering plans and public regulator announcements. Reviewed October 2026. Lookup results describe number assignment areas and cannot be used to infer the true location of a caller.

By the Area Code Lookup editorial team · Updated October 12, 2026

Sources & citations

NANPA — North American Numbering Plan Administrationwww.nationalnanpa.com
List of North American Numbering Plan area codes (Wikipedia)en.wikipedia.org
Local Calling Guide — NANP prefix databasewww.localcallingguide.com

Every guide on this site is verified against these sources and carries its own review date. Lookup results describe number assignment areas and never prove where a caller is located.