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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
301-407 5 Gaithersburg MD BTVLMD12CMA  5562 METROPCS, INC. 236   2006-05-05   
301-407 6 Gaithersburg MD CHCHMDBE6MD  4716 PAETEC COMMUNICATIONS, INC. - MD 236   2011-10-13   
301-407 7 Gaithersburg MD BTVLMD12CMA  5562 METROPCS, INC. 236   2005-12-29   
301-407 8 Gaithersburg MD BTVLMD12CMA  5562 METROPCS, INC. 236   2006-05-05   
301-407 9 Gaithersburg MD PLVLMDPVRS2  9212 VERIZON MARYLAND, INC. 236      
301-408 A Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 0 Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 1 Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 2 Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 3 Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 4 Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 5 Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 6 Washington Zone 3 MD BTVLMD12CMA  5562 METROPCS, INC. 236   2011-08-19   
301-408 7 Washington Zone 3 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-408 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-06-15   
301-408 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2007-09-04   
301-409 A Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-409 0 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-04-25   
301-409 1 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-03-20   
301-409 2 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-03-20   
301-409 3 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-12   
301-409 4 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-12   
301-409 5 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-12   
301-409 6 Washington Zone 2 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-12   
301-409 7 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-03-10   
301-409 8 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-03-10   
301-409 9 Washington Zone 2 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-03-10   
301-410 A Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
301-410 0 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 1 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 2 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 3 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 4 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 5 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 6 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 7 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 8 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-410 9 Washington Zone 6 MD WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-06-26   
301-412 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-413 A Washington Zone 11 MD RKVLMDMRDS0  9212 VERIZON MARYLAND, INC. 236      
301-414 A Damascus MD DMSCMDDERP0  9212 VERIZON MARYLAND, INC. 236      
301-414 0 Damascus MD DMSCMDDERP0  9212 VERIZON MARYLAND, INC. 236      
301-414 1 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-07-17   
301-414 2 Damascus MD DMSCMDDERP0  9212 VERIZON MARYLAND, INC. 236      
301-414 3 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-07-17   
301-414 4 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-07-17   
301-414 5 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-414 6 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-414 7 Damascus MD DMSCMDDERP0  9212 VERIZON MARYLAND, INC. 236      
301-414 8 Damascus MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-11   
301-414 9 Damascus MD DMSCMDDERP0  9212 VERIZON MARYLAND, INC. 236      
301-415 A Washington Zone 3 MD SLSPMDSSDSS  9212 VERIZON MARYLAND, INC. 236      
301-416 A Myersville MD SMBGMDSMRS0  9212 VERIZON MARYLAND, INC. 240      
301-416 0 Myersville MD SMBGMDSMRS0  9212 VERIZON MARYLAND, INC. 240      
301-416 1 Myersville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-05-02   
301-416 2 Myersville MD KDVLMDKVRS0  9212 VERIZON MARYLAND, INC. 240      
301-416 3 Myersville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-05-02   
301-416 4 Myersville MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-416 5 Myersville MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2004-03-28   
301-416 6 Myersville MD   145J TERRA NOVA TELECOM INC. 240   2022-11-07   
301-416 7 Myersville MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-416 8 Myersville MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-416 9 Myersville MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2019-11-08   
301-417 A Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-417 0 Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-417 1 Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-417 2 Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-417 3 Washington Zone 10 MD HRNDVACKBMD  5978 BROADVIEW NETWORKS OF VIRGINIA, INC. - VA 236   2015-09-17   
301-417 4 Washington Zone 10 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2015-04-14   
301-417 5 Washington Zone 10 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-06-27   
301-417 6 Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-417 7 Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-417 8 Washington Zone 10 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2015-10-15   
301-417 9 Washington Zone 10 MD GTBGMDGBPS0  9212 VERIZON MARYLAND, INC. 236      
301-418 A Frederick MD FRDRMDFRDS0  9212 VERIZON MARYLAND, INC. 240      
301-418 0 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2003-10-11   
301-418 1 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2003-10-11   
301-418 2 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2003-10-11   
301-418 3 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2004-01-31   
301-418 4 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2004-01-31   
301-418 5 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2004-06-10   
301-418 6 Frederick MD MRBGWVBUHPA  4095 FIBERNET, LLC - WV 240   2004-04-07   
301-418 7 Frederick MD FRDRMDFRDS1  9212 VERIZON MARYLAND, INC. 240   2004-08-23   
301-418 8 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2004-09-13   
301-418 9 Frederick MD FRDRMDFRDS0  9212 VERIZON MARYLAND, INC. 240   2003-01-11   
301-419 A Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-420 A Washington Zone 5 MD STLDMDSLDS0  9212 VERIZON MARYLAND, INC. 236      
301-421 A Ashton MD SLSPMDCVDS0  9212 VERIZON MARYLAND, INC. 236      
301-422 A Washington Zone 4 MD HYVLMDRIDS0  9212 VERIZON MARYLAND, INC. 236      
301-423 A Washington Zone 5 MD TMHLMDTHDS0  9212 VERIZON MARYLAND, INC. 236      
301-424 A Washington Zone 10 MD RKVLMDRVDS1  9212 VERIZON MARYLAND, INC. 236      
301-425 A Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 A Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 0 Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 1 Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 2 Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 3 Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 4 Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 5 Washington Zone 13 MD MRKKMDMKDS0  9212 VERIZON MARYLAND, INC. 236      
301-426 6 Washington Zone 13 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

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

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