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: 740 [Rate centres in NPA 740] [Dial plan for NPA 740]

NXX: 837

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
740-837 A London OH CLMFOHJU3MD  6664 SPRINT SPECTRUM, L.P. 324      
740-837 0 London OH CLMFOHJU5MD  5562 METROPCS, INC. 324      
740-837 1 London OH CLMFOHJU5MD  5562 METROPCS, INC. 324      
740-837 2 London OH CLMDOH44MMD  516J TON80 COMMUNICATIONS, LLC 324   2021-09-23   
740-837 4 London OH CLMDOHZI6MD  4863 LEVEL 3 COMMUNICATIONS, LLC - OH 324   2004-04-11   
740-837 6 London OH CLMFOHJU5MD  5562 METROPCS, INC. 324      
740-837 7 London OH CLMBOH11XLZ  001F BANDWIDTH.COM CLEC, LLC - OH 324   2015-05-22   
740-837 8 London OH CLMBOH11XLZ  001F BANDWIDTH.COM CLEC, LLC - OH 324   2012-06-21   
740-837 9 London OH   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 324   2023-02-14   

Last updated: Sat, 25 Feb 2023 02:10:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.