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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
937-310 A Bellbrook OH DYTNOHISBMD  3376 WINDSTREAM NUVOX OHIO, LLC 328      
937-310 0 Bellbrook OH DYTNOHISBMD  3376 WINDSTREAM NUVOX OHIO, LLC 328      
937-310 1 Bellbrook OH DYTNOH22XRY  547D TIME WARNER CABLE INFORMATION SVCS (OHIO) - OH 328   2007-02-16   
937-310 2 Bellbrook OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2007-03-05   
937-310 3 Bellbrook OH HMTNOHHMDS3  309B CINCINNATI BELL EXTENDED TERRITORIES LLC - OH 328   2008-03-14   
937-310 4 Bellbrook OH DYTNOH15OMD  7421 AT&T LOCAL 328   2003-11-25   
937-310 5 Bellbrook OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2011-04-09   
937-310 6 Bellbrook OH DYTNOH15WMD  516C AT&T CORP. 328   2009-10-15   
937-310 7 Bellbrook OH DYTNOH014MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 328   2005-04-11   
937-310 8 Bellbrook OH DYTNOH22XXX  7836 INTERMEDIA COMMUNICATIONS INC. - OH 328   2004-09-30   
937-310 9 Bellbrook OH DYTNOHKT8MD  145J TERRA NOVA TELECOM INC. 328   2021-01-01   

Last updated: Tue, 04 May 2021 15:04:27 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.