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← Area code 813

813-521 phone numbers

Numbers 813-521-0000 to 813-521-9999 are assigned to Aerial Communications, Inc. (rate centre TAMPACEN, FL, NANPA abbreviation). 8 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 813-521