Prefix 206-588 — Seattle, WA

NANPA CO code assignment, current as of July 28, 2026.

Area code
206
Prefix (NXX)
588
Rate center
Seattle
State
Washington
Time zone
Pacific
Code holder
COMCAST IP PHONE, LLC
OCN
318J
Pooled
Yes (thousands-block pooling)
Assigned
2008-05-15
LATA
674

A phone number starting 206-588 was issued in the Seattle rate center of WA — part of area code 206.

NANPA's central-office code records list COMCAST IP PHONE, LLC (OCN 318J) as the code holder, assigned May 15, 2008. Because 206-588 participates in thousands-block pooling, individual 1,000-number blocks may belong to other carriers than the code holder.

A scammer can display 206-588 without ever touching WA. When in doubt, end the call and reach the company or agency through its official website; unwanted robocalls belong in the FTC's fraud report queue.

Seattle is part of the Seattle-Tacoma-Bellevue, WA Metropolitan Statistical Area. For routing purposes it sits in LATA 674. Numbers here keep Pacific time.

Neighboring prefixes

Prefixes adjacent to 206-588
PrefixRate centerCode holder
206-585 Seattle QWEST CORPORATION
206-586 Seattle T-MOBILE USA, INC.
206-587 Seattle QWEST CORPORATION
206-589 Richmond Beach ONVOY, LLC - WA
206-590 Seattle BANDWIDTH.COM CLEC, LLC - WA
206-591 Bainbridge Island T-MOBILE USA, INC.

FAQ

Where is 206-588 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 206-588 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 206-588 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.