620-955 phone numbers

Numbers 620-955-0000 to 620-955-9999 are assigned to T-Mobile USA, Inc. in Kingman, KS. 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 620-955-0xxx, 620-955-3xxx, 620-955-5xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 620-955