509-538 phone numbers

Numbers 509-538-0000 to 509-538-9999 are assigned to Centurylink (rate centre WILLARD, WA, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 509-538-1xxx, 509-538-3xxx, 509-538-4xxx, 509-538-6xxx, 509-538-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 509-538