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← Area code 440

440-423 phone numbers

Numbers 440-423-0000 to 440-423-9999 are assigned to Ohio Bell Tel Co in Gates Mills, OH. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 440-423-6xxx, 440-423-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 440-423