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
301-347 0 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-347 1 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-347 2 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-347 3 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-347 4 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-347 5 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-347 6 Washington Zone 2 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2017-01-20   
301-347 7 Washington Zone 2 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2017-09-14   
301-347 8 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2018-10-14   
301-347 9 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-348 A Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-348 0 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-24   
301-348 1 Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-348 2 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-348 3 Washington Zone 11 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-348 4 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-348 5 Washington Zone 11 MD WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2017-08-03   
301-348 6 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2012-08-26   
301-348 7 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-07-30   
301-348 8 Washington Zone 11 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2016-02-24   
301-348 9 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-24   
301-349 A Poolesville MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-349 0 Poolesville MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-349 1 Poolesville MD SLSPMD91DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
301-349 2 Poolesville MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-349 3 Poolesville MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-01   
301-349 4 Poolesville MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-349 5 Poolesville MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-349 6 Poolesville MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
301-349 7 Poolesville MD CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2007-04-15   
301-349 8 Poolesville MD WASHDC12OMD  4820 CAVALIER EAST, LLC - MD 236   2011-01-28   
301-349 9 Poolesville MD   515J IP HORIZON LLC 236   2015-03-21   
301-350 A Washington Zone 5 MD CPHGMDCADS0  9212 VERIZON MARYLAND, INC. 236      
301-351 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-352 A Washington Zone 14 MD BOWIMDBODS0  9212 VERIZON MARYLAND, INC. 236      
301-353 A Washington Zone 10 MD GMTWMDGNDS0  9212 VERIZON MARYLAND, INC. 236      
301-354 A Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 0 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 1 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 2 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 3 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 4 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 5 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 6 Washington Zone 10 MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2013-10-01   
301-354 7 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 8 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-354 9 Washington Zone 10 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-355 A Gaithersburg MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-355 0 Gaithersburg MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2009-10-12   
301-355 1 Gaithersburg MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 236   2009-11-30   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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