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: 963

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-963 A Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956      
423-963 0 Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956   2004-10-08   
423-963 1 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956      
423-963 2 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956   2006-06-22   
423-963 3 Kingsport TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-963 4 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956      
423-963 5 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956      
423-963 6 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956      
423-963 7 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956   2006-10-08   
423-963 8 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956      
423-963 9 Kingsport TN JHCYTNXCX2Y  5562 METROPCS, INC. 956      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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