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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
410-431 6 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-431 7 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-431 8 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-431 9 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-432 A Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-432 0 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-23   
410-432 1 Severna Park MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-07-05   
410-432 2 Severna Park MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2016-12-05   
410-432 3 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-432 4 Severna Park MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-09-30   
410-432 5 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-432 6 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-432 7 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-432 8 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-432 9 Severna Park MD SVPKMDSPRP0  9212 VERIZON MARYLAND, INC. 238      
410-433 A Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
410-434 A Towson MD HNVAMDAE3MD  6630 SPOK, INC. 238      
410-435 A Baltimore MD BLTMMDYKDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 A Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 0 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238   2005-02-20   
410-436 1 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 2 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 3 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 4 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 5 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 6 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 7 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 8 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238      
410-436 9 Edgewood MD EDWDMDEGDS0  9212 VERIZON MARYLAND, INC. 238   2005-02-20   
410-437 A Armiger-Gibson Island MD ARMGMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-438 A Sudlersville MD SDVLMDSDRS0  9212 VERIZON MARYLAND, INC. 242      
410-438 0 Sudlersville MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2004-04-03   
410-438 1 Sudlersville MD SLBRMD902MD  073H TELNYX LLC 242   2017-09-13   
410-438 2 Sudlersville MD SDVLMDSDRS0  9212 VERIZON MARYLAND, INC. 242      
410-438 3 Sudlersville MD SDVLMDSDRS0  9212 VERIZON MARYLAND, INC. 242      
410-438 4 Sudlersville MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-02-14   
410-438 6 Sudlersville MD ESTNMDESMMD  228C IDT AMERICA, CORP. - MD 242   2006-05-21   
410-438 7 Sudlersville MD SLBRMDSBXFX  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 242   2016-10-16   
410-438 8 Sudlersville MD SLBRMDSBXVX  876D ONVOY, LLC - MD 242   2017-04-14   
410-439 A Armiger-Gibson Island MD ARMGMDARDS0  9212 VERIZON MARYLAND, INC. 238      
410-440 A Catonsville MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-441 A Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-441 0 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-441 1 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-441 2 Elkton MD   829J PAETEC ITEL, LLC 238   2003-02-26   
410-441 3 Elkton MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2007-04-16   
410-441 4 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
410-441 5 Elkton MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
410-441 6 Elkton MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2010-09-14   
410-441 7 Elkton MD BLTMMD91DS2  2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 238   2003-12-25   

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

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