Prefix 206-257 — Seattle, WA
Numbers in the 206-257 prefix are registered to the Seattle rate center in WA, inside area code 206. The prefix is the second block of a ten-digit US number (206-257-XXXX) and pins the number to a billing locality.
NANPA's central-office code records list COMCAST IP PHONE, LLC (OCN 318J) as the code holder, assigned January 5, 2005. Because 206-257 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.
The rate center lies in the Seattle-Tacoma-Bellevue, WA Metropolitan Statistical Area. The serving LATA is 674. Local time follows the Pacific zone.
Spoofing means this prefix on your screen doesn't guarantee a Seattle caller. Verify independently before trusting a request for money or data.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 206-254 | Seattle | QWEST CORPORATION |
| 206-255 | Seattle | T-MOBILE USA, INC. |
| 206-256 | Seattle | QWEST CORPORATION |
| 206-258 | Seattle | COMCAST IP PHONE, LLC |
| 206-259 | Vashon | LEVEL 3 COMMUNICATIONS, LLC - WA |
| 206-260 | Seattle | ONVOY, LLC - WA |
FAQ
Where is 206-257 located?
The prefix is assigned to the Seattle rate center in WA, area code 206. It is part of the Seattle-Tacoma-Bellevue, WA Metropolitan Statistical Area.
Which company owns 206-257 numbers?
COMCAST IP PHONE, LLC holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 206-257 safe to answer?
The prefix itself says nothing about the caller. Legitimate Seattle businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.