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← Area code 620

620-288 phone numbers

Numbers 620-288-0000 to 620-288-9999 are assigned to Verizon Wireless in Fredonia, KS. 6 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 620-288-5xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 620-288