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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
301-533 2 Oakland MD OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 3 Oakland MD OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 4 Oakland MD OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      
301-533 5 Oakland MD   2593 CORE COMMUNICATIONS, INC.- MD 240   2019-05-02   
301-533 6 Oakland MD MNRVMDMOXFX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 240   2008-01-18   
301-533 7 Oakland MD FRDRMDFRXMD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 240   2008-02-13   
301-533 8 Oakland MD FRDRMDLH7MD  281E YMAX COMMUNICATIONS CORP. - MD 240   2009-03-16   
301-533 9 Oakland MD   145J TERRA NOVA TELECOM INC. 240   2025-12-17   
301-534 A Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236      
301-534 0 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 1 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 2 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 3 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 4 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 5 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 6 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 7 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 8 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-534 9 Indian Head MD WASLDCRGDS0  281E YMAX COMMUNICATIONS CORP. - MD 236   2007-01-06   
301-535 A Waldorf MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-536 A Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 0 Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 1 Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 2 Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 3 Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 4 Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 5 Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 6 Leonardtown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-536 7 Leonardtown MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-536 8 Leonardtown MD BTVLMD12CMA  5562 METROPCS, INC. 236      
301-536 9 Leonardtown MD   145J TERRA NOVA TELECOM INC. 236   2021-07-16   
301-537 A Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 0 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 1 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 2 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 3 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 4 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 6 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-537 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236      
301-538 A Washington Zone 2 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
301-539 A La Plata MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-539 0 La Plata MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
301-539 1 La Plata MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-539 2 La Plata MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-08-19   
301-539 3 La Plata MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-09-05   
301-539 4 La Plata MD LPLTMDLADS0  9212 VERIZON MARYLAND, INC. 236   2005-05-24   
301-539 5 La Plata MD   829J PAETEC ITEL, LLC 236   2005-10-07   

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

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