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← Area code 423

423-550 phone numbers

Numbers 423-550-0000 to 423-550-9999 are assigned to Bandwidth.com CLEC, LLC (rate centre MIDWAY, TN, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 423-550-3xxx, 423-550-4xxx, 423-550-6xxx, 423-550-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 423-550