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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
301-769 5 Leonardtown MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
301-769 6 Leonardtown MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2005-08-15   
301-769 7 Leonardtown MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-08-15   
301-769 8 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-01-11   
301-769 9 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2016-03-11   
301-770 A Washington Zone 11 MD RKVLMDMRDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 A Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 0 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-09-01   
301-771 1 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2015-05-19   
301-771 2 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 3 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 4 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 5 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 6 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 7 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 8 Washington Zone 2 MD CHCHMDBEDS0  9212 VERIZON MARYLAND, INC. 236      
301-771 9 Washington Zone 2 MD   515J IP HORIZON LLC 236   2016-05-31   
301-772 A Washington Zone 4 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-773 A Washington Zone 4 MD LDVRMDLODS0  9212 VERIZON MARYLAND, INC. 236      
301-774 A Ashton MD OLNYMDOKRP0  9212 VERIZON MARYLAND, INC. 236      
301-775 A Washington Zone 3 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236      
301-776 A Laurel MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-777 A Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 0 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 1 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 2 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 3 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 4 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 5 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 6 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240   2011-02-13   
301-777 7 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 8 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-777 9 Cumberland MD CMLDMDCMDS0  9212 VERIZON MARYLAND, INC. 240      
301-778 A Washington Zone 5 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-778 0 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-10-12   
301-778 1 Washington Zone 5 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
301-778 2 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2008-10-05   
301-778 3 Washington Zone 5 MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2008-10-10   
301-778 4 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
301-778 5 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-07-15   
301-778 6 Washington Zone 5 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2012-04-05   
301-778 7 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-10-22   
301-778 8 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-28   
301-778 9 Washington Zone 5 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-10-12   
301-779 A Washington Zone 4 MD HYVLMDHYDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 A Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 0 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 1 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 2 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-780 3 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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