423-407 phone numbers

Numbers 423-407-0000 to 423-407-9999 are assigned to Twin Lakes Communications, Inc. in Spring City, TN. 8 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 423-407-4xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 423-407