559 Area CodeFresno, CA
Area code 559 covers Fresno and nearby communities in California, in the Pacific Time (PT) zone, home to about 1.6 million people across 122 cities. It overlays 357, so the same region uses both and every local call needs all ten digits.
Overview
- Major City
- Fresno
- State
- California (CA)
- Timezone
- Pacific Time (PT)
- Current Time
- Overlay
- Yes – shares area with 357
Where is area code 559?
Area code 559 serves part of Fresno, CA and the surrounding areas. It has a single overlay (357) that serves the same area.
Overview of the 559 Area Code
What is the 559 area code?
The 559 area code serves Fresno, California, alongside other established area codes. When you see a 559 number, it indicates a local number within this geographic area.
Why was area code 559 created?
The 559 area code was introduced as an overlay to add numbers in Fresno once the existing area code 357 began to run out of available prefixes. It added a new supply of numbers without requiring current residents to change their existing digits.
Geographic Coverage of the 559 Area Code
The 559 area code serves Fresno and surrounding areas in California. It operates within the Pacific Time (PT) time zone. It complements the coverage of area code 357. This area code covers several key cities, including:
- Fresno
- Visalia
- Clovis
- Tulare
- Madera
- Porterville
Got a call from a 559 number? It came from Fresno, CA. Since 559 overlays with 357, every local call in the region needs all ten digits to land on the right line. Inside 559, Fresno holds about 34% of the population; the rest is split across 121 smaller cities.
Fresno Area Codes Overview
Fresno is served by multiple area codes, reflecting its telecommunications needs. The 559 area code operates alongside 357. Here are the area codes serving this region:
The introduction of the 559 area code helped prevent number exhaustion, ensuring a continuous supply of phone numbers across the geographic area.
What cities does area code 559 cover?
| City | State | Population | % of Area Code | % of City |
|---|---|---|---|---|
| Fresno | CA | 550,105 | 1% | 100% |
| Visalia | CA | 146,271 | 0% | 100% |
| Clovis | CA | 127,993 | 0% | 100% |
| Tulare | CA | 72,601 | 0% | 100% |
| Madera | CA | 69,094 | 0% | 100% |
| Porterville | CA | 63,517 | 0% | 100% |
| Hanford | CA | 60,594 | 0% | 100% |
| Lemoore | CA | 27,057 | 0% | 100% |
| Sanger | CA | 26,649 | 0% | 100% |
| Reedley | CA | 26,138 | 0% | 100% |
* Sources: Population – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). Area code assignments – NANPA CO Code data. See our data methodology.
Has area code 559 been reported for unwanted calls?
Yes – 538 unwanted-call complaints were reported to the FTC for numbers showing a 559 area code (May 29 – Jul 2, 2026).
- 60% robocalls
- ↓ 14% vs prior period
Most-reported subjects
- Other55%298
- Dropped call or no message16%88
- Reducing your debt (credit cards, mortgage, student loans)10%53
* Caller ID is easily spoofed, so these figures reflect the number shown on caller ID, not the caller's true location – an area code alone never identifies a caller. The FTC does not verify the facts in these complaints. Source: FTC Do Not Call (DNC) Reported Calls Data, retrieved 2026-07-05.
Which prefixes and exchanges belong to area code 559?
72% assigned to a telco
- 70% Landline
- 30% Wireless
- 0% Unknown
| Prefix | Usage | Carrier |
|---|---|---|
| (559)200- | Landline | American Messaging Services |
| (559)201- | Landline | Bandwidth.Com Clec |
| (559)202- | Wireless | T-Mobile Usa |
| (559)203- | Wireless | T-Mobile Usa |
| (559)204- | Landline | American Messaging Services |
| (559)205- | Landline | Peerless Network Of California |
| (559)206- | Landline | Onvoy |
| (559)207- | Wireless | T-Mobile Usa |
| (559)208- | Landline | American Messaging Services |
| (559)209- | Wireless | Csc Wireless |
Frequently Asked Questions about the 559 Area Code
Who called me from a 559 number?
A 559 number is assigned to Fresno, California, so a call may come from there. But caller ID is easy to fake, and scammers often spoof a local 559 code to look nearby, so a 559 number doesn't prove the caller is local. Recently, 538 unwanted-call complaints were reported to the FTC for numbers showing the 559 code (60% flagged as robocalls). If you don't recognize the number, let it go to voicemail; a real caller will leave a message.
Is 559 a scam area code?
No area code is a scam on its own. 559 is a normal, officially assigned code for Fresno, California. Spam callers spoof local codes to raise the odds you answer, so 559 on your caller ID says nothing about who is really calling. Recently, 538 unwanted-call complaints were reported to the FTC for numbers showing the 559 code (60% flagged as robocalls). Judge the call itself, not the area code.
Why do I keep getting calls from the 559 area code?
Repeated calls from different 559 numbers are usually spoofing: a robocaller rotates through 559 numbers so each call looks local and slips past simple blocks. Recently, 538 unwanted-call complaints were reported to the FTC for numbers showing the 559 code (60% flagged as robocalls). Blocking one number rarely helps; voicemail screening, your carrier spam filter, and the Do Not Call Registry work better.
Should I answer an unknown 559 number?
If you aren't expecting a 559 call, let it ring to voicemail. Legitimate callers leave a message, most robocallers hang up when no one picks up, and answering can mark your number as active and bring more calls.
How do I block calls from the 559 area code?
Block a single 559 number from your recent-calls list (iPhone: tap the number, then Block this Caller; Android: tap the number, then Block or report spam). To cut the volume, turn on Silence Unknown Callers on iPhone or spam protection on Android, enable spam filtering from your carrier, and register at DoNotCall.gov. Blocking the entire 559 code also stops legitimate local calls, so use it only as a last resort.
Where is area code 559?
Area code 559 covers Fresno and the surrounding area in California, spanning 122 cities with about 1,599,701 residents. It shares its area with overlay code 357.
Is 559 a real area code?
Yes. 559 is an active code in the North American Numbering Plan, assigned by NANPA and in service for Fresno, California. A real code can still show up on spoofed spam calls, so treat unknown 559 calls with normal caution.
What timezone is the 559 area code in?
The 559 area code is in the Pacific Time (PT). Because a number can be kept when someone moves or switches to VoIP, a specific 559 caller may not be in that zone.
How do I call a 559 number from abroad?
From outside the US, dial your country's exit code, then 1 (the US country code), then 559 and the seven-digit number. From a mobile phone you can usually just enter +1 559 followed by the number and let the phone add the exit code for you.