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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
301-709 1 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-11-07   
301-709 2 Cumberland MD CMLDMDCMX0X  425J CSC WIRELESS, LLC 240   2019-07-19   
301-709 3 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-01-05   
301-709 4 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-01-05   
301-709 5 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-02-10   
301-709 6 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-02-10   
301-709 7 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-02-10   
301-709 8 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-02-10   
301-709 9 Cumberland MD CMLDMDCMEMD  876D ONVOY, LLC - MD 240   2020-11-07   
301-710 A Waldorf MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-710 0 Waldorf MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-10-17   
301-710 1 Waldorf MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-12-04   
301-710 2 Waldorf MD BTVLMD12CMA  5562 METROPCS, INC. 236   2010-11-10   
301-710 3 Waldorf MD BTVLMD12CMA  5562 METROPCS, INC. 236   2010-11-10   
301-710 4 Waldorf MD BTVLMD12CMA  5562 METROPCS, INC. 236   2010-11-10   
301-710 5 Waldorf MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-02-20   
301-710 6 Waldorf MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-02-20   
301-710 7 Waldorf MD BTVLMD12CMA  5562 METROPCS, INC. 236   2010-11-10   
301-710 8 Waldorf MD BTVLMD12CMA  5562 METROPCS, INC. 236   2010-11-10   
301-710 9 Waldorf MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-10-26   
301-712 A Frederick MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240      
301-712 0 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2004-10-03   
301-712 1 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2004-10-03   
301-712 2 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2005-02-11   
301-712 3 Frederick MD FRDRMDFRKMD  5562 METROPCS, INC. 240   2005-12-10   
301-712 4 Frederick MD   876D ONVOY, LLC - MD 240   2026-01-19   
301-712 5 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2006-04-24   
301-712 6 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2006-04-24   
301-712 7 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2006-04-24   
301-712 8 Frederick MD FRDRMDFRXSX  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 240   2006-04-24   
301-712 9 Frederick MD FRDRMDFRX7X  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 240   2004-09-13   
301-713 A Washington Zone 3 MD SLSPMDSSDSS  9212 VERIZON MARYLAND, INC. 236      
301-714 A Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 0 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 1 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 2 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 3 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 4 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 5 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 6 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 7 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-714 8 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240   2015-11-27   
301-714 9 Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-715 A Washington Zone 15 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-715 0 Washington Zone 15 MD   515J IP HORIZON LLC 236   2019-04-26   
301-715 1 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
301-715 2 Washington Zone 15 MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-715 3 Washington Zone 15 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2009-10-09   
301-715 4 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   
301-715 5 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-06-16   

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Last updated: Fri, 10 Jul 2026 02:55:48 UTC

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