Key points about the 559 area code
- The 559 area code serves Fresno and the central valley.
- It uses Pacific Time (UTC-8 standard, UTC-7 in summer).
- 559 was split from 209 in 1998.
- It covers a large agricultural region of central California.
- Fresno is the largest city it serves.
559 area code at a glance
| Region | Fresno, California |
| Country | United States |
| Time zone | Pacific Time (PT) |
| UTC offset | UTC-8 / UTC-7 (DST) |
| In service since | 1998 |
| Split from | 209 |
| Largest city | Fresno |
Where is the 559 area code?
The 559 area code is located in Fresno, California, United States. The 559 area code covers Fresno and the central San Joaquin Valley in California, United States. It uses the Pacific Time Zone and was split from the 209 code in 1998.
Fresno is one of several California metros in this guide. See the related California codes for 916 area code (Sacramento), 669 area code (San Jose), 925 area code (East Bay).
What time zone is the 559 area code in?
The 559 area code follows Pacific Time (PT). In practice that means UTC-8 (PST) and UTC-7 during daylight saving (PDT).
History of the 559 area code
The 559 area code was created in 1998 when it was split from 209, which had become overloaded across the central valley. The new code took in Fresno and the surrounding farming counties of central California. It has not needed an overlay since, so much of the region still uses seven-digit local dialing within the code.
Nearby area codes
| Area code | Region |
|---|---|
| 209 | Stockton and Modesto, the original code |
| 661 | Bakersfield and Kern County |
| 805 / 820 | Central coast of California |
| 760 | Eastern and desert California |
Cities covered by the 559 area code
| City | Approx. population |
|---|---|
| Fresno | Around 545,000 |
| Visalia | Around 145,000 |
| Clovis | Around 125,000 |
| Hanford | Around 58,000 |
| Madera | Around 67,000 |
Largest telephone carriers
The main networks providing service across the 559 area code include:
- AT&T
- Verizon
- T-Mobile
- Comcast (Xfinity Mobile)
Explore more area code guides
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