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: 252 [Rate centres in NPA 252] [Dial plan for NPA 252]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
252-579 A Plymouth NC RCMTNCXAXWX  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 951      
252-579 0 Plymouth NC RCMTNCXAXJY  638E ONVOY, LLC - NC 951   2023-10-08   
252-579 1 Plymouth NC RCMTNCXA10Z  793K TWC IP ENABLED SERVICES, LLC 951   2024-11-17   
252-579 8 Plymouth NC RCMTNCXAXLZ  624H ONVOY SPECTRUM, LLC 951   2024-03-20   
252-579 9 Plymouth NC RCMTNCXAXWX  3235 LEVEL 3 COMMUNICATIONS, LLC - NC 951      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.