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: 466

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-466 A Mechanicsville MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-466 0 Mechanicsville MD CHCHMDBE1MD  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236      
240-466 1 Mechanicsville MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-466 2 Mechanicsville MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-466 3 Mechanicsville MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236      
240-466 4 Mechanicsville MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-466 5 Mechanicsville MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
240-466 6 Mechanicsville MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-466 7 Mechanicsville MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236      
240-466 8 Mechanicsville MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-466 9 Mechanicsville MD VINNVACBDS0  876D ONVOY, LLC - MD 236      

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.