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: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-646 A Laurel MD WASJDCDBDS1  4820 CAVALIER EAST LLC - MD 236      
240-646 0 Laurel MD   4820 CAVALIER EAST LLC - MD 236      
240-646 1 Laurel MD   4820 CAVALIER EAST LLC - MD 236      
240-646 2 Laurel MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC DBA T-MOBILE USA 236   2008-07-17   
240-646 3 Laurel MD   4820 CAVALIER EAST LLC - MD 236      
240-646 4 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-12-21   
240-646 5 Laurel MD   4820 CAVALIER EAST LLC - MD 236      
240-646 6 Laurel MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-12-21   
240-646 7 Laurel MD   4820 CAVALIER EAST LLC - MD 236      
240-646 8 Laurel MD   4820 CAVALIER EAST LLC - MD 236      
240-646 9 Laurel MD   4820 CAVALIER EAST LLC - MD 236      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.