Local Calling Guide
Area code/prefix search
NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]
NXX: 392
NPA-NXX | BLOCK | Rate Centre | Region | Switch | OCN | LATA | LIR | Eff date | Disc date |
---|---|---|---|---|---|---|---|---|---|
423-392 | A | Kingsport | TN | KGPTTNXADS0 | 4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN | 956 |
Last updated: Wed, 20 Nov 2024 21:20:06 UTC
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