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← Area code 770

770-421 phone numbers

Numbers 770-421-0000 to 770-421-9999 are assigned to Southern Bell Tel & Tel (rate centre ATLANTA NW, GA, NANPA abbreviation). 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

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

Reported numbers in 770-421