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: 810

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-810 A Buckeystown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      
301-810 0 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-810 1 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-810 2 Buckeystown MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
301-810 3 Buckeystown MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240      
301-810 4 Buckeystown MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-810 5 Buckeystown MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
301-810 6 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-810 7 Buckeystown MD   2593 CORE COMMUNICATIONS, INC.- MD 240      
301-810 8 Buckeystown MD MRBGWVBUHPA  4095 FIBERNET, LLC - WV 240      
301-810 9 Buckeystown MD FRDRMDFRXPX  624H ONVOY SPECTRUM, LLC 240      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.