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: 596

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-596 A Ashton MD CHCHMDBEPS0  2593 CORE COMMUNICATIONS, INC. - MD 236      
240-596 0 Ashton MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-08-02   
240-596 1 Ashton MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-08-02   
240-596 2 Ashton MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-08-02   
240-596 3 Ashton MD WASHDC125MD  197D VONAGE NETWORK INC. 236   2020-05-21   
240-596 4 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2019-02-23   
240-596 5 Ashton MD WASHDC125MD  197D VONAGE NETWORK INC. 236   2020-05-21   
240-596 6 Ashton MD WASHDCSWFMD  2593 CORE COMMUNICATIONS, INC. - MD 236   2019-05-01   
240-596 7 Ashton MD WASHDCSWFMD  2593 CORE COMMUNICATIONS, INC. - MD 236   2019-05-01   
240-596 8 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-12-07   
240-596 9 Ashton MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2018-12-07   

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.