← Area code 620
620-963 phone numbers
Numbers 620-963-0000 to 620-963-9999 are assigned to Centurylink (rate centre NEOSHO FLS, KS, NANPA abbreviation). 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 620-963-1xxx, 620-963-3xxx, 620-963-4xxx, 620-963-5xxx, 620-963-6xxx, 620-963-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.