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← Area code 712

712-389 phone numbers

Numbers 712-389-0000 to 712-389-9999 are assigned to AT&T - Local in Sioux City, IA. 9 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 712-389