Area codes · +1
Area code 206
Area code 206 covers Seattle, Washington. We hold 4,857 allocated blocks for it across 5 rate centres, split 45% mobile, 44% landline and 11% VoIP.
How far area code 206 reaches
Area code 206 covers 5 rate centres, so two 206 numbers are not always a local call to each other.
A rate centre is a billing boundary rather than a postal one, which is why an area code can span several and a single city can contain many. It is also why the code alone cannot place a subscriber beyond a rough region.
Washington is split across 6 area codes — 360, 509, 206, 425, 253, 564. By allocated blocks 206 is the third largest of them, holding 19% of the Washington total.
Where 206 numbers are concentrated
NANPA truncates rate-centre names to ten characters and drops the spaces, which is why Richmndbch is 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 206 |
|---|---|---|
| Seattle | 4,170 | 86% |
| Bainbdg Is | 264 | 5% |
| Des Moines | 185 | 4% |
| Richmndbch | 154 | 3% |
| Vashon | 71 | 1% |
Carriers holding the most 206 blocks
Qwest Corporation694 blocks
T-Mobile Usa, Inc.558 blocks
Onvoy552 blocks
Verizon Wireless530 blocks
T-Mobile USA, Inc.510 blocks
AT&T Wireless350 blocks
The largest holder, Qwest Corporation, has 14% of the code.
These are original allocations. A number keeps its digits and its block when its subscriber moves network, so a ported 206 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 206 number, or run a whole list through the free cleaner — neither uploads anything.
Common questions
Where is area code 206?
Area code 206 covers Seattle, Washington, spanning 5 rate centres.
Is a 206 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 206 the split runs 45% mobile, 44% landline and 11% VoIP, so mobile is the most likely single answer.
Which carriers hold 206 numbers?
The largest holders are Qwest Corporation, T-Mobile Usa, Inc., Onvoy. That is the carrier the block was allocated to, which is not necessarily the network a given number sits on today.
How many 206 numbers are there?
The code holds 4,857 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 206 covers on the order of 4,857,000 possible numbers — most of which have never been issued to anyone.