Area code 559 covers Fresno and surrounding areas in California. It was activated in 1998 as an overlay of area code 209. Today it shares its territory with overlay code 357. For the full picture, see all California area codes.
| State | California |
|---|---|
| Primary city | Fresno |
| Cities also served | Fresno, Visalia, Clovis, Madera, Hanford, Tulare, Porterville, Sanger |
| Time zone | Pacific (UTC-8 / UTC-7 DST) |
| Year established | November 14, 1998 |
| Original 1947 NPA? | No |
| Parent code | 209 |
| Overlay codes | 357 |
| Currently in use? | Yes, actively assigned |
| Ten-digit dialing required? | Yes |
Cities Served by Area Code 559
Area code 559 serves Central San Joaquin Valley, including Fresno, Madera, Kings, and Tulare counties, including the following cities and communities:
- Fresno
- Visalia
- Clovis
- Madera
- Hanford
- Tulare
- Porterville
- Sanger
Nearby area codes covering the same broader region include: 209, 661, 805.
How to Get a 559 Phone Number
There are three ways to get a phone number with the 559 area code, each suited to a different need:
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Browse 559 Numbers →- Buy from a premium-number specialist. Companies that hold curated inventories of specific area codes can sell you a 559 number directly, often with a one-time fee and ownership transferred to you (no recurring carrier fees). This is the option for picking a specific memorable number, or for getting an area code that most carriers won’t let you request. Browse our 559 inventory.
- Sign up with a VoIP carrier. Voice-over-IP services (such as Google Voice, OpenPhone, Grasshopper, and many others) can typically provision a 559 number on request, especially for active overlay codes. You won’t usually get to pick the specific number, but you’ll get a working line in the area code. This is the cheapest option for anyone who doesn’t need a particular number.
- Port an existing 559 number. If you already have a 559 phone number with another carrier, you can transfer it (port it) to a new service provider while keeping the number. This works for landlines, cell phones, and VoIP services, though landlines outside of California sometimes can’t accept inbound ports of 559 numbers due to 911 routing rules.
Looking for a 559 number? 212areacode.com offers premium 559 numbers for Fresno, California — choose your number, port it to any carrier in 3–5 business days, and pay a one-time fee with no monthly charges. Browse available 559 numbers →
Frequently Asked Questions
Is the 559 area code still in use?
Yes. 559 is actively assigned to new phone lines in Central San Joaquin Valley, including Fresno, Madera, Kings, and Tulare counties.
What is the difference between 559 and 357?
Today they share the same geographic territory in California. New phone lines in the area may be assigned either code. The two codes work identically for calling, billing, and service.
What is the parent area code of 559?
Area code 559 is an overlay of 209. Both codes serve the same region of California.
Can I get a 559 number if I don't live in California?
Yes. Phone numbers are no longer tied to a physical address. With VoIP service or a number broker, you can hold a 559 number from anywhere in the world. The number routes to whatever device or carrier you specify.
Is 559 a scam area code?
No. 559 is a legitimate, active area code for Central San Joaquin Valley, including Fresno, Madera, Kings, and Tulare counties. Like any area code, scammers occasionally spoof 559 caller IDs, but the code itself is heavily used by real California businesses, government offices, and residents.
Where is the 559 area code located?
Area code 559 covers the central San Joaquin Valley of California, serving Fresno, Visalia, Clovis, Madera, Hanford, Tulare, and Porterville across Fresno, Madera, Kings, and Tulare counties.
What area code did 559 split from?
Area code 559 was created on November 14, 1998, when it split from area code 209, which had been serving the broader Central California region.
Does 559 require ten-digit dialing?
Yes. Since the 357 overlay went into service on March 26, 2025, all local calls in the 559 territory require ten-digit dialing — the area code plus the seven-digit number.
What is the 357 area code?
Area code 357 is an all-service overlay added to the 559 territory by the California Public Utilities Commission, effective March 26, 2025, to address numbering exhaustion in the central San Joaquin Valley.
Related Reading
- How Do Area Codes Work?
- How Are Area Codes Assigned?
- Why the Right Area Code Matters
- When Did We Start Using Area Codes?
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