Local Calling Guide

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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
410-714 7 Easton MD SLBRMDSBX0X  624H ONVOY SPECTRUM, LLC 242   2021-05-22   
410-714 8 Easton MD ESTNMDESQMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 242   2020-08-18   
410-714 9 Easton MD SLBRMDSCXLX  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 242      
410-715 A Columbia MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-716 A Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-716 0 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-716 1 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-716 2 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-716 3 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-716 4 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-12-09   
410-716 5 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-12-09   
410-716 6 Towson MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2018-12-09   
410-716 7 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-716 8 Towson MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2025-11-19   
410-716 9 Towson MD BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2024-10-23   
410-717 A Elkridge MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-717 0 Elkridge MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-717 1 Elkridge MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-717 2 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2011-09-19   
410-717 3 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2011-09-19   
410-717 4 Elkridge MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-717 5 Elkridge MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2011-09-19   
410-717 6 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2009-12-27   
410-717 7 Elkridge MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-717 8 Elkridge MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2009-12-27   
410-717 9 Elkridge MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238      
410-718 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 0 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 1 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 2 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 3 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 4 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 5 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 6 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 7 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 8 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-718 9 Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2005-04-05   
410-719 A Catonsville MD CTVLMDCTDS0  9212 VERIZON MARYLAND, INC. 238      
410-720 A Ellicott City MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-720 0 Ellicott City MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-720 1 Ellicott City MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-720 2 Ellicott City MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-07-30   
410-720 3 Ellicott City MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-720 4 Ellicott City MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-720 5 Ellicott City MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
410-720 6 Ellicott City MD CLMAMDOBDS0  9212 VERIZON MARYLAND, INC. 238      
410-720 7 Ellicott City MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-720 8 Ellicott City MD CLMAMDCBRP0  9212 VERIZON MARYLAND, INC. 238      
410-720 9 Ellicott City MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2007-08-20   
410-721 A Crofton MD COTNMDCRDS0  9212 VERIZON MARYLAND, INC. 238      

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

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