← Area code 620
620-217 phone numbers
Numbers 620-217-0000 to 620-217-9999 are assigned to T-Mobile USA, Inc. in Hesston, KS. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 620-217-3xxx, 620-217-4xxx, 620-217-5xxx, 620-217-6xxx, 620-217-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.