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
240-718 A Lexington Park-Great Mills MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-718 0 Lexington Park-Great Mills MD   4773 XO MARYLAND, LLC 236      
240-718 1 Lexington Park-Great Mills MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-718 2 Lexington Park-Great Mills MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-718 3 Lexington Park-Great Mills MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-718 4 Lexington Park-Great Mills MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-09-03   
240-718 5 Lexington Park-Great Mills MD   4773 XO MARYLAND, LLC 236   2010-12-29   
240-718 6 Lexington Park-Great Mills MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
240-718 7 Lexington Park-Great Mills MD   4773 XO MARYLAND, LLC 236      
240-718 8 Lexington Park-Great Mills MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-02-26   
240-718 9 Lexington Park-Great Mills MD   6664 SPRINT SPECTRUM L.P. 236   2011-10-25   

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.