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: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 750

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-750 A Friendsville MD HGTWMD53DS0  2593 CORE COMMUNICATIONS, INC.- MD 240      
301-750 0 Friendsville MD FRDRMDFRPS0  2593 CORE COMMUNICATIONS, INC.- MD 240      
301-750 1 Friendsville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      
301-750 2 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-750 3 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-750 4 Friendsville MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240      
301-750 5 Friendsville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
301-750 6 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-750 7 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-750 8 Friendsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-750 9 Friendsville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240      

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.