509-404 phone numbers

Numbers 509-404-0000 to 509-404-9999 are assigned to Centurylink Communications, LLC in Dayton, WA. 8 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 509-404-6xxx — calls from these use spoofed caller IDs.

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 509-404