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: 937 [Rate centres in NPA 937] [Dial plan for NPA 937]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-579 A Lynchburg OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-579 0 Lynchburg OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2005-09-18   
937-579 1 Lynchburg OH DYTNOH22X6Y  001F BANDWIDTH.COM CLEC, LLC - OH 328   2009-01-04   
937-579 4 Lynchburg OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328      
937-579 5 Lynchburg OH WLMGOHXBEMD  547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 328   2007-02-16   
937-579 7 Lynchburg OH DYTNOHIBX2X  508J CENTURYLINK COMMUNICATIONS, LLC 328   2014-06-01   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.