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
410-583 2 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-583 3 Towson MD   515J IP HORIZON LLC 238   2019-04-26   
410-583 4 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-583 5 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-583 6 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-583 7 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-583 8 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-583 9 Towson MD TWSNMDTWDS0  9212 VERIZON MARYLAND, INC. 238      
410-584 A Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 0 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 1 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 2 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 3 Cockeysville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-08   
410-584 4 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 5 Cockeysville MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-08   
410-584 6 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 7 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 8 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-584 9 Cockeysville MD CYVLMDDADS0  9212 VERIZON MARYLAND, INC. 238      
410-585 A Baltimore MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-585 0 Baltimore MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-585 1 Baltimore MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-585 2 Baltimore MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-585 3 Baltimore MD PIVLMDPKDS1  9212 VERIZON MARYLAND, INC. 238      
410-585 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-03-10   
410-585 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2003-03-10   
410-585 6 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-02-21   
410-585 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2004-01-02   
410-585 8 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-02-21   
410-585 9 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-02-21   
410-586 A Prince Frederick MD MUTLMDMTRS0  9212 VERIZON MARYLAND, INC. 238      
410-587 A Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 0 Arbutus MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-07   
410-587 1 Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 2 Arbutus MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-07   
410-587 3 Arbutus MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 4 Arbutus MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 5 Arbutus MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 6 Arbutus MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 7 Arbutus MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-05-28   
410-587 8 Arbutus MD BLTMMDCHXVX  321J HD CARRIER LLC 238   2016-05-14   
410-587 9 Arbutus MD   321J HD CARRIER LLC 238   2016-05-14   
410-588 A Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 0 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 1 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 2 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 3 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 4 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 5 Bel Air MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-588 6 Bel Air MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2004-06-10   

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

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