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← Area code 509

509-261 phone numbers

Numbers 509-261-0000 to 509-261-9999 are assigned to United States Cellular in Goldendale, WA. 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 509-261-3xxx, 509-261-6xxx, 509-261-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 509-261