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← Area code 815

815-401 phone numbers

Numbers 815-401-0000 to 815-401-9999 are assigned to Level 3 Communications, LLC in Kankakee, IL. 6 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 815-401