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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-344 7 Chase MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-01-02   
410-344 8 Chase MD   829J PAETEC ITEL, LLC 238   2003-02-25   
410-344 9 Chase MD CHASMDCHRP0  9212 VERIZON MARYLAND, INC. 238      
410-345 A Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 0 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-03-17   
410-345 1 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 2 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 3 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 4 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 5 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 6 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 7 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 8 Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-345 9 Pikesville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-03-17   
410-346 A Silver Run MD SLRNMDSLRS0  9212 VERIZON MARYLAND, INC. 238      
410-346 0 Silver Run MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-04   
410-346 1 Silver Run MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-08   
410-346 2 Silver Run MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2011-07-08   
410-346 3 Silver Run MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-04   
410-346 4 Silver Run MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-346 5 Silver Run MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-05   
410-346 6 Silver Run MD SLRNMDSLRS0  9212 VERIZON MARYLAND, INC. 238      
410-346 7 Silver Run MD SLRNMDSLRS0  9212 VERIZON MARYLAND, INC. 238      
410-346 8 Silver Run MD SLRNMDSLRS0  9212 VERIZON MARYLAND, INC. 238   2006-07-27   
410-346 9 Silver Run MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-28   
410-347 A Baltimore MD BLTMMDCHDS3  9212 VERIZON MARYLAND, INC. 238      
410-348 A Still Pond MD STPNMDSPRS0  9212 VERIZON MARYLAND, INC. 242      
410-348 0 Still Pond MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-348 1 Still Pond MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2021-03-05   
410-348 2 Still Pond MD STPNMDSPRS0  9212 VERIZON MARYLAND, INC. 242      
410-348 3 Still Pond MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-348 4 Still Pond MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2016-10-16   
410-348 5 Still Pond MD STPNMDSPRS0  9212 VERIZON MARYLAND, INC. 242      
410-348 6 Still Pond MD   145J TERRA NOVA TELECOM INC. 242   2022-08-02   
410-348 7 Still Pond MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
410-348 8 Still Pond MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-348 9 Still Pond MD STPNMDSPRS0  9212 VERIZON MARYLAND, INC. 242      
410-349 A Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-349 0 Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-349 1 Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-349 2 Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-349 3 Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-349 4 Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-349 5 Annapolis MD BLTMMDCH08Z  4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2003-11-08   
410-349 6 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-03-03   
410-349 7 Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-02-03   
410-349 8 Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-349 9 Annapolis MD STMRMDSMRS1  9212 VERIZON MARYLAND, INC. 238      
410-350 A Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-350 0 Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-350 1 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-12-31   
410-350 2 Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-350 3 Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-350 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-03-10   
410-350 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-03-10   
410-350 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-03-10   
410-350 7 Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-350 8 Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-350 9 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-12-31   
410-351 A Baltimore MD HNVAMDAE3MD  6630 USA MOBILITY WIRELESS, INC. 238      
410-352 A Bishopville MD BSHPMDBPRS0  9212 VERIZON MARYLAND, INC. 242      
410-352 0 Bishopville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
410-352 1 Bishopville MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-06   
410-352 2 Bishopville MD SLBRMD901MD  939H COMMIO, LLC 242   2023-12-21   
410-352 3 Bishopville MD BSHPMDBPRS0  9212 VERIZON MARYLAND, INC. 242      
410-352 4 Bishopville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-352 5 Bishopville MD BSHPMDBPRS0  9212 VERIZON MARYLAND, INC. 242      
410-352 6 Bishopville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-03-28   
410-352 7 Bishopville MD ESTNMDES5MD  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 242   2009-03-02   
410-352 8 Bishopville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2019-03-04   
410-352 9 Bishopville MD BSHPMDBPRS0  9212 VERIZON MARYLAND, INC. 242      
410-353 A Annapolis MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-354 A Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-355 A Baltimore MD BRKLMDBKRP0  9212 VERIZON MARYLAND, INC. 238      
410-356 A Pikesville MD OWMLMDOMDS0  9212 VERIZON MARYLAND, INC. 238      
410-357 A Parkton MD PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-357 0 Parkton MD PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-357 1 Parkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-357 2 Parkton MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
410-357 3 Parkton MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2012-05-20   
410-357 4 Parkton MD PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-357 5 Parkton MD PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-357 6 Parkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-357 7 Parkton MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-30   
410-357 8 Parkton MD PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-357 9 Parkton MD PKTNMDPKRS0  9212 VERIZON MARYLAND, INC. 238      
410-358 A Baltimore MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-359 A Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-360 A Armiger-Gibson Island MD ARMGMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-361 A Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 0 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-02-20   
410-361 1 Baltimore MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-02-20   
410-361 2 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 3 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 4 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 5 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 6 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 7 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 8 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      
410-361 9 Baltimore MD BLTMMDCHDS2  9212 VERIZON MARYLAND, INC. 238      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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