Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-304 A Walkersville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240      
301-304 0 Walkersville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2007-04-20   
301-304 1 Walkersville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2010-10-17   
301-304 2 Walkersville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2011-03-24   
301-304 3 Walkersville MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2009-09-02   
301-304 4 Walkersville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2010-06-26   
301-304 5 Walkersville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2013-02-08   
301-304 6 Walkersville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2014-02-10   
301-304 7 Walkersville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2014-07-12   
301-304 8 Walkersville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-10-29   
301-304 9 Walkersville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2015-02-27   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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