Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 336 [Rate centres in NPA 336] [Dial plan for NPA 336]

NXX: 828

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
336-828 A Roxboro NC GNBONCEU24Z  638E ONVOY, LLC - NC 424      
336-828 0 Roxboro NC GNBONCEU75Z  073H TELNYX LLC 424   2023-11-06   
336-828 1 Roxboro NC KRVLNCARBMD  6324 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC 424   2023-12-21   
336-828 2 Roxboro NC GNBONCEU24Z  638E ONVOY, LLC - NC 424   2023-10-02   
336-828 3 Roxboro NC GNBONCEU24Z  638E ONVOY, LLC - NC 424   2023-10-02   

Last updated: Sat, 01 Jun 2024 11:59:14 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.