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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
301-893 4 Washington Zone 6 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-20   
301-893 5 Washington Zone 6 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2016-08-15   
301-893 6 Washington Zone 6 MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-893 7 Washington Zone 6 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-05-20   
301-893 8 Washington Zone 6 MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-893 9 Washington Zone 6 MD   145J TERRA NOVA TELECOM INC. 236   2021-06-10   
301-894 A Washington Zone 6 MD TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-895 A Grantsville MD GTVLMDGRRS0  9212 VERIZON MARYLAND, INC. 240      
301-895 0 Grantsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2012-02-06   
301-895 1 Grantsville MD HGTWMD530MD  073H TELNYX LLC 240   2017-08-08   
301-895 2 Grantsville MD HGTWMDHGDMD  071F BANDWIDTH.COM CLEC, LLC - MD 240   2015-06-20   
301-895 3 Grantsville MD GTVLMDGRRS0  9212 VERIZON MARYLAND, INC. 240      
301-895 4 Grantsville MD GTVLMDGRRS0  9212 VERIZON MARYLAND, INC. 240      
301-895 5 Grantsville MD GTVLMDGRRS0  9212 VERIZON MARYLAND, INC. 240      
301-895 6 Grantsville MD FRDRMDFRXKX  508J CENTURYLINK COMMUNICATIONS, LLC 240   2016-11-12   
301-895 7 Grantsville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
301-895 8 Grantsville MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2010-03-05   
301-895 9 Grantsville MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2016-09-12   
301-896 A Washington Zone 2 MD BTHSMDWWDS0  9212 VERIZON MARYLAND, INC. 236      
301-897 A Washington Zone 2 MD BTHSMDWWDS0  9212 VERIZON MARYLAND, INC. 236      
301-898 A Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 0 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 1 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 2 Frederick MD FRDRMDFRXTX  318J COMCAST IP PHONE, LLC 240   2008-08-20   
301-898 3 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 4 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 5 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 6 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2015-12-27   
301-898 7 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 8 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-898 9 Frederick MD WLVLMDWLDS0  9212 VERIZON MARYLAND, INC. 240      
301-899 A Washington Zone 5 MD TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-900 A Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236      
301-900 0 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-04-20   
301-900 1 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-27   
301-900 2 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-27   
301-900 3 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-27   
301-900 4 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-27   
301-900 5 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-06-27   
301-900 6 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-27   
301-900 7 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-27   
301-900 8 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-07-27   
301-900 9 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-04-20   
301-901 A Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-901 0 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-10-15   
301-901 1 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-901 2 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-901 3 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-10-15   
301-901 4 Washington Zone 13 MD CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
301-901 5 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2023-10-15   

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

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