Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 336 [Rate centres in NPA 336] [Dial plan for NPA 336]

NXX: 331

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-331 A Winston-Salem NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424      
336-331 0 Winston-Salem NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424      
336-331 1 Winston-Salem NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424      
336-331 2 Winston-Salem NC KRVLNCARBMD  6324 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 424   2006-04-06   
336-331 3 Winston-Salem NC GNBONCEUY1X  793K TWC IP ENABLED SERVICES, LLC 424   2009-09-11   
336-331 4 Winston-Salem NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424      
336-331 5 Winston-Salem NC GNBONCEU24Z  638E ONVOY, LLC - NC 424   2007-09-14   
336-331 6 Winston-Salem NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424      
336-331 7 Winston-Salem NC GNBONCEU45Z  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 424   2018-08-06   
336-331 8 Winston-Salem NC GNBONCCKX9X  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 424   2006-08-26   
336-331 9 Winston-Salem NC GNBPNCEMDS1  350F PEERLESS NETWORK OF NORTH CAROLINA, LLC - NC 424   2018-08-06   

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

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