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: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-284 A Frostburg MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-284 0 Frostburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-284 1 Frostburg MD CMLDMDCH0MD  228C IDT AMERICA, CORP. - MD 240      
240-284 2 Frostburg MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
240-284 3 Frostburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-284 4 Frostburg MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-284 5 Frostburg MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240      
240-284 6 Frostburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-284 7 Frostburg MD FRDRMDFRXAX  7325 TELEPORT COMMUNICATIONS AMERICA, LLC - MD 240      
240-284 8 Frostburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-284 9 Frostburg MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.