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← Area code 620

620-374 phone numbers

Numbers 620-374-0000 to 620-374-9999 are assigned to Southwestern Bell in Howard, KS. 6 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 620-374-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 620-374