Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 924

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-924 A Johnson City TN   276F PEERLESS NETWORK OF TENNESSEE, LLC - TN 956   2025-05-04   
423-924 0 Johnson City TN   276F PEERLESS NETWORK OF TENNESSEE, LLC - TN 956   2025-05-04   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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