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: 785

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-785 A Oakland MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-785 0 Oakland MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-785 1 Oakland MD HGTWMD539MD  939H COMMIO, LLC 240      
240-785 2 Oakland MD   876D ONVOY, LLC - MD 240      
240-785 3 Oakland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-785 4 Oakland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-785 5 Oakland MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-785 7 Oakland MD CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-785 8 Oakland MD CMLDMDCM5MD  4720 USCOC OF CUMBERLAND, INC. DBA UNITED STATES CEL MD 240      
240-785 9 Oakland MD HGTWMD53DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 240      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.