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: 835

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-835 A Clear Spring MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-835 0 Clear Spring MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-835 1 Clear Spring MD CMLDMDCMUMD  073H TELNYX LLC 240      
240-835 2 Clear Spring MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-835 3 Clear Spring MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-835 4 Clear Spring MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
240-835 5 Clear Spring MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
240-835 6 Clear Spring MD HGTWMD53EMD  516J TON80 COMMUNICATIONS, LLC 240      
240-835 7 Clear Spring MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-835 8 Clear Spring MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
240-835 9 Clear Spring MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.