Local Calling Guide

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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
301-764 0 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-07-30   
301-764 1 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-764 2 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-764 3 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-764 4 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
301-764 5 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-764 6 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-764 7 Waldorf MD WDRFMDWDDS0  9212 VERIZON MARYLAND, INC. 236      
301-764 8 Waldorf MD   515J IP HORIZON LLC 236   2019-04-26   
301-764 9 Waldorf MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-07-30   
301-765 A Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 0 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 1 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 2 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 3 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 4 Washington Zone 10 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2008-11-15   
301-765 5 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 6 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 7 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 8 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-765 9 Washington Zone 10 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-766 A Hagerstown MD HGTWMDHGDS0  9212 VERIZON MARYLAND, INC. 240      
301-767 A Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 0 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 1 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 2 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 3 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 4 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 5 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-01-13   
301-767 6 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-04-09   
301-767 7 Washington Zone 2 MD WASKDCFNAMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2007-04-09   
301-767 8 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-767 9 Washington Zone 2 MD BTHSMDBDDS0  9212 VERIZON MARYLAND, INC. 236      
301-768 A Washington Zone 3 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-768 0 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-08-16   
301-768 1 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2003-12-28   
301-768 2 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-06-25   
301-768 3 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-08-14   
301-768 4 Washington Zone 3 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-768 5 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-01-07   
301-768 6 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-09-03   
301-768 7 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-02   
301-768 8 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-02-02   
301-768 9 Washington Zone 3 MD BTVLMD12CMA  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2004-06-25   
301-769 A Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      
301-769 0 Leonardtown MD LARLMDLR3MD  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 236   2003-12-25   
301-769 1 Leonardtown MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-01-11   
301-769 2 Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      
301-769 3 Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      
301-769 4 Leonardtown MD MLTWMDMLRS0  9212 VERIZON MARYLAND, INC. 236      

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

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