Area codes · +1
Area code 559
Area code 559 is centred on Fresno, California. We hold 6,652 allocated blocks for it across 60 rate centres, split 50% mobile, 36% landline and 15% VoIP.
The towns inside area code 559
Area code 559 is not a city code. It covers 60 separate rate centres — billing areas, each its own local calling zone. The largest of them are named in the table below.
That matters twice over. A call between two 559 numbers is not necessarily a local call, because they can sit in different rate centres. And a code this wide narrows a subscriber to a region rather than a town.
California is split across 40 area codes — 657, 707, 559, 209, 530, 213 and others. By allocated blocks 559 is the third largest of them, holding 4% of the California total.
Where 559 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Portervl and Springvl are shortened. Names are reproduced as recorded rather than expanded — the abbreviation is the key the block data is filed under.
| Rate centre | Blocks | Share of 559 |
|---|---|---|
| Fresno | 2,060 | 31% |
| Visalia | 691 | 10% |
| Clovis | 369 | 6% |
| Madera | 300 | 5% |
| Hanford | 281 | 4% |
| Portervl | 262 | 4% |
| Tulare | 238 | 4% |
| Dinuba | 127 | 2% |
| Lemoore | 123 | 2% |
| Reedley | 117 | 2% |
| Selma | 104 | 2% |
| Caruthers | 90 | 1% |
| Chowchilla | 85 | 1% |
| Parlier | 83 | 1% |
| Avenal | 75 | 1% |
| Fowler | 73 | 1% |
| Kingsburg | 67 | 1% |
| Sanger | 67 | 1% |
| Firebaugh | 65 | 1% |
| Springvl | 64 | 1% |
| Burrel | 60 | 1% |
| Corcoran | 60 | 1% |
| Sanjoaquin | 59 | 1% |
| Woodlake | 58 | 1% |
36 further rate centres in 559 hold fewer blocks than these.
Carriers holding the most 559 blocks
AT&T Wireless1,430 blocks
Pacific Bell820 blocks
Onvoy728 blocks
Verizon Wireless606 blocks
T-Mobile USA, Inc.507 blocks
Bandwidth391 blocks
The largest holder, AT&T Wireless, has 21% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 559 number still reports the carrier it started with. Closing that gap needs a live query against the routing database. How line type is derived.
Check a single 559 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 559?
Area code 559 is centred on Fresno, California and spans 60 rate centres, so it covers a region rather than a town.
Is a 559 number a mobile or a landline?
It can be either, and the digits do not say which. North American mobile and landline numbers share the same ranges, so the answer comes from the carrier holding the block. In 559 the split runs 50% mobile, 36% landline and 15% VoIP, so mobile is the most likely single answer.
Which carriers hold 559 numbers?
The largest holders are AT&T Wireless, Pacific Bell, Onvoy. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 559 numbers are there?
The code holds 6,652 allocated blocks in our copy of the numbering plan. A block is 1,000 or 10,000 consecutive numbers depending on how deeply it has been pooled, so 559 covers on the order of 6,652,000 possible numbers — most of which have never been issued to anyone.