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: 349

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-349 A La Plata MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-349 1 La Plata MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236      
240-349 2 La Plata MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-349 3 La Plata MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-349 5 La Plata MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-349 6 La Plata MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-349 7 La Plata MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
240-349 8 La Plata MD BTVLMD127MD  5562 METROPCS, INC. 236      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.