Area codes · +1
Area code 509
Area code 509 is centred on Spokane, Washington. We hold 5,866 allocated blocks for it across 119 rate centres, split 50% mobile, 39% landline and 11% VoIP.
The towns inside area code 509
Area code 509 is not a city code. It covers 119 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 509 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.
Washington is split across 6 area codes — 360, 509, 206, 425, 253, 564. By allocated blocks 509 is the second largest of them, holding 23% of the Washington total.
Where 509 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Quincy and Wh Salmon 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 509 |
|---|---|---|
| Spokane | 1,340 | 23% |
| Yakima | 474 | 8% |
| Kennewick | 385 | 7% |
| Wenatchee | 249 | 4% |
| Pasco | 190 | 3% |
| Ellensburg | 178 | 3% |
| Wallawalla | 175 | 3% |
| Sunnyside | 140 | 2% |
| Moses Lake | 138 | 2% |
| Richland | 111 | 2% |
| Pullman | 110 | 2% |
| Clarkston | 98 | 2% |
| Deer Park | 77 | 1% |
| Colville | 76 | 1% |
| Ephrata | 72 | 1% |
| Omak | 65 | 1% |
| Quincy | 61 | 1% |
| Connell | 54 | 1% |
| Cle Elum | 53 | 1% |
| Wh Salmon | 51 | 1% |
| Prosser | 50 | 1% |
| Cheney | 48 | 1% |
| Othello | 45 | 1% |
| Colfax | 40 | 1% |
95 further rate centres in 509 hold fewer blocks than these.
Carriers holding the most 509 blocks
Verizon Wireless886 blocks
Onvoy783 blocks
AT&T Wireless675 blocks
Qwest Corporation444 blocks
T-Mobile Usa, Inc.358 blocks
T-Mobile USA, Inc.284 blocks
The largest holder, Verizon Wireless, has 15% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 509 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 509 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 509?
Area code 509 is centred on Spokane, Washington and spans 119 rate centres, so it covers a region rather than a town.
Is a 509 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 509 the split runs 50% mobile, 39% landline and 11% VoIP, so mobile is the most likely single answer.
Which carriers hold 509 numbers?
The largest holders are Verizon Wireless, Onvoy, AT&T Wireless. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 509 numbers are there?
The code holds 5,866 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 509 covers on the order of 5,866,000 possible numbers — most of which have never been issued to anyone.