620-320 phone numbers

Numbers 620-320-0000 to 620-320-9999 are assigned to Gbt Communications, Inc. in Macksville, KS. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 620-320-1xxx, 620-320-2xxx, 620-320-4xxx, 620-320-6xxx, 620-320-8xxx, 620-320-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 620-320