Local Calling Guide

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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-200 A Indian Head MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236      
301-200 0 Indian Head MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-07-31   
301-200 1 Indian Head MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-04-25   
301-200 2 Indian Head MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-09-02   
301-200 3 Indian Head MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2011-10-03   
301-200 4 Indian Head MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-04-21   
301-200 5 Indian Head MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-06-03   
301-200 6 Indian Head MD   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236   2015-06-20   
301-200 7 Indian Head MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-09-06   
301-200 8 Indian Head MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-09-06   
301-200 9 Indian Head MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2013-03-01   
301-202 A Washington Zone 2 MD BTVLMD18GT6  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-202 0 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-03-10   
301-202 1 Washington Zone 2 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-07   
301-202 2 Washington Zone 2 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-07   
301-202 3 Washington Zone 2 MD   2589 US LEC OF MARYLAND, INC. 236   2010-06-08   
301-202 4 Washington Zone 2 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-07   
301-202 5 Washington Zone 2 MD   281E YMAX COMMUNICATIONS CORP. - MD 236   2010-06-08   
301-202 6 Washington Zone 2 MD   281E YMAX COMMUNICATIONS CORP. - MD 236   2010-06-08   
301-202 7 Washington Zone 2 MD   281E YMAX COMMUNICATIONS CORP. - MD 236   2010-01-15   
301-202 8 Washington Zone 2 MD   281E YMAX COMMUNICATIONS CORP. - MD 236   2010-01-15   
301-202 9 Washington Zone 2 MD   281E YMAX COMMUNICATIONS CORP. - MD 236   2010-01-15   
301-203 A Washington Zone 6 MD FTWSMDCPDS0  9212 VERIZON MARYLAND, INC. 236      
301-204 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-204 0 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-204 1 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-204 2 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-204 3 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-204 4 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-204 5 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
301-204 6 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
301-204 7 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
301-204 8 Washington Zone 2 MD   9212 VERIZON MARYLAND, INC. 236   2003-08-11   
301-204 9 Washington Zone 2 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2005-03-24   
301-205 A Washington Zone 14 (Baltimore LATA) MD MAYOMDMYRS1  9212 VERIZON MARYLAND, INC. 238      
301-205 0 Washington Zone 14 (Baltimore LATA) MD   9212 VERIZON MARYLAND, INC. 238      
301-205 1 Washington Zone 14 (Baltimore LATA) MD   321J HD CARRIER LLC 238   2016-05-14   
301-205 2 Washington Zone 14 (Baltimore LATA) MD   321J HD CARRIER LLC 238   2016-05-14   
301-205 3 Washington Zone 14 (Baltimore LATA) MD   321J HD CARRIER LLC 238   2016-05-14   
301-205 4 Washington Zone 14 (Baltimore LATA) MD   321J HD CARRIER LLC 238   2016-05-14   
301-205 5 Washington Zone 14 (Baltimore LATA) MD   876D ONVOY, LLC - MD 238   2020-10-17   
301-205 6 Washington Zone 14 (Baltimore LATA) MD   321J HD CARRIER LLC 238   2016-05-14   
301-205 7 Washington Zone 14 (Baltimore LATA) MD   321J HD CARRIER LLC 238   2016-05-14   
301-205 8 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-05-14   
301-205 9 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-05-14   
301-206 A Washington Zone 13 MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-207 A Washington Zone 13 MD SLSPMDSSX6X  6630 USA MOBILITY WIRELESS, INC. 236      
301-208 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-209 A Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-210 A Laurel MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Mon, 24 May 2021 01:28:43 UTC

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