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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
301-573 5 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-573 6 Hagerstown MD FRDRMDFRKMD  5562 METROPCS, INC. 240      
301-573 7 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-573 8 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-573 9 Hagerstown MD FRDRMDFRKMD  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 240      
301-574 A Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 0 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 1 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 2 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 3 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 4 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 5 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 6 Washington Zone 15 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-574 7 Washington Zone 15 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2018-11-29   
301-574 8 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-574 9 Washington Zone 15 MD MRBOMDMBDS0  9212 VERIZON MARYLAND, INC. 236      
301-575 A Laurel MD   829J PAETEC ITEL, LLC 236   2025-04-02   
301-575 0 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 1 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 2 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 3 Laurel MD   829J PAETEC ITEL, LLC 236      
301-575 4 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-01-02   
301-575 5 Laurel MD   829J PAETEC ITEL, LLC 236   2006-07-30   
301-575 6 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-08-07   
301-575 7 Laurel MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2006-08-07   
301-575 8 Laurel MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-575 9 Laurel MD   829J PAETEC ITEL, LLC 236      
301-576 A Washington Zone 3 MD   829J PAETEC ITEL, LLC 236   2025-04-02   
301-577 A Washington Zone 4 MD LNHMMDLNDS0  9212 VERIZON MARYLAND, INC. 236      
301-578 A Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-578 0 Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-578 1 Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-578 2 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-06-13   
301-578 3 Washington Zone 3 MD WASHDC126MD  964H BARR TELL USA, INC. 236   2018-05-08   
301-578 4 Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-578 5 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2020-06-13   
301-578 6 Washington Zone 3 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2018-07-19   
301-578 7 Washington Zone 3 MD WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2018-03-12   
301-578 8 Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-578 9 Washington Zone 3 MD SLSPMDSSDS0  9212 VERIZON MARYLAND, INC. 236      
301-579 A Brandywine MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      
301-579 0 Brandywine MD WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236   2019-12-16   
301-579 1 Brandywine MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-579 2 Brandywine MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      
301-579 3 Brandywine MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
301-579 4 Brandywine MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2003-03-24   
301-579 5 Brandywine MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-13   
301-579 6 Brandywine MD BADNMDBNRS0  9212 VERIZON MARYLAND, INC. 236      
301-579 7 Brandywine MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-03   
301-579 8 Brandywine MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-03-03   

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

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