620-380 phone numbers

Numbers 620-380-0000 to 620-380-9999 are assigned to Southwestern Bell in Iola, KS. 8 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 620-380-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 620-380