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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
410-934 8 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
410-934 9 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-03-29   
410-935 A Baltimore MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-936 A Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242      
410-936 0 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2019-11-01   
410-936 1 Salisbury MD SLBRMDSBXLX  318J COMCAST IP PHONE, LLC 242   2019-07-19   
410-936 2 Salisbury MD SLBRMDSCXMD  5562 METROPCS, INC. 242   2019-11-29   
410-936 3 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-12-24   
410-936 4 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-12-24   
410-936 5 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-12-24   
410-936 6 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-12-24   
410-936 7 Salisbury MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2020-12-24   
410-936 8 Salisbury MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2020-12-17   
410-936 9 Salisbury MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-11-06   
410-937 A Fallston MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238      
410-938 A Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 0 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-06-23   
410-938 1 Towson MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2018-12-07   
410-938 2 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 3 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 4 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 5 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 6 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-01-10   
410-938 7 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2019-01-10   
410-938 8 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-938 9 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-06-23   
410-939 A Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      
410-940 A Annapolis MD   829J PAETEC ITEL, LLC 238   2025-04-01   
410-940 0 Annapolis MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   
410-940 1 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-01-17   
410-940 2 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-01-17   
410-940 3 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-03   
410-940 4 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-17   
410-940 5 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-10-17   
410-940 6 Annapolis MD   829J PAETEC ITEL, LLC 238   2002-03-15   
410-940 7 Annapolis MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-03-06   
410-940 8 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-09-30   
410-940 9 Annapolis MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-09-30   
410-941 A Jarrettsville 941 MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-941 0 Jarrettsville 941 MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-06-17   
410-941 1 Jarrettsville 941 MD JRVLMDJERS0  9212 VERIZON MARYLAND, INC. 238      
410-941 2 Jarrettsville 941 MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-01-02   
410-941 3 Jarrettsville 941 MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-31   
410-941 4 Jarrettsville 941 MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2004-02-07   
410-941 5 Jarrettsville 941 MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2005-03-10   
410-941 6 Jarrettsville 941 MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-05-07   
410-941 7 Jarrettsville 941 MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2009-03-02   
410-941 8 Jarrettsville 941 MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-22   
410-941 9 Jarrettsville 941 MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2008-12-11   
410-942 A Havre de Grace MD HDGRMDHVDS0  9212 VERIZON MARYLAND, INC. 238      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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