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← Area code 860

860-405 phone numbers

Numbers 860-405-0000 to 860-405-9999 are assigned to Frontier Comm of Ct in New London, CT. 4 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 860-405