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
410-873 4 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 5 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 6 Nanticoke MD   2593 CORE COMMUNICATIONS, INC.- MD 242   2019-05-02   
410-873 7 Nanticoke MD   876D ONVOY, LLC - MD 242   2017-04-14   
410-873 8 Nanticoke MD   073H TELNYX LLC 242   2017-09-13   
410-873 9 Nanticoke MD   876D ONVOY, LLC - MD 242   2019-03-04   
410-874 A Odenton MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-874 0 Odenton MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-874 1 Odenton MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-874 2 Odenton MD   829J PAETEC ITEL, LLC 238   2006-06-30   
410-874 3 Odenton MD   318J COMCAST IP PHONE, LLC 238   2012-09-20   
410-874 4 Odenton MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-874 5 Odenton MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2012-10-11   
410-874 6 Odenton MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2015-08-28   
410-874 7 Odenton MD   318J COMCAST IP PHONE, LLC 238   2006-09-12   
410-874 8 Odenton MD   318J COMCAST IP PHONE, LLC 238   2006-09-12   
410-874 9 Odenton MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-875 A Sykesville MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-875 0 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-875 1 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-875 2 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-875 3 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-875 4 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-875 5 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-875 6 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-875 7 Sykesville MD   318J COMCAST IP PHONE, LLC 238   2013-10-03   
410-875 8 Sykesville MD   829J PAETEC ITEL, LLC 238   2004-03-27   
410-875 9 Sykesville MD   9212 VERIZON MARYLAND, INC. 238      
410-876 A Reisterstown MD WMNSMDWMDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 A Fallston MD BLARMDBLDS0  9212 VERIZON MARYLAND, INC. 238      
410-877 0 Fallston MD   9212 VERIZON MARYLAND, INC. 238      
410-877 1 Fallston MD   9212 VERIZON MARYLAND, INC. 238      
410-877 2 Fallston MD   9212 VERIZON MARYLAND, INC. 238      
410-877 3 Fallston MD   9212 VERIZON MARYLAND, INC. 238      
410-877 4 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-08-07   
410-877 5 Fallston MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2006-08-07   
410-877 6 Fallston MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-03   
410-877 7 Fallston MD   9212 VERIZON MARYLAND, INC. 238      
410-877 8 Fallston MD   9212 VERIZON MARYLAND, INC. 238      
410-877 9 Fallston MD   9212 VERIZON MARYLAND, INC. 238      
410-878 A Baltimore MD BLTOMDKHDS0  7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-878 0 Baltimore MD   318J COMCAST IP PHONE, LLC 238   2006-08-08   
410-878 1 Baltimore MD   318J COMCAST IP PHONE, LLC 238   2006-08-08   
410-878 2 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-08-30   
410-878 3 Baltimore MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-878 4 Baltimore MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      
410-878 5 Baltimore MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2005-06-19   
410-878 6 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-08-30   
410-878 7 Baltimore MD   829J PAETEC ITEL, LLC 238   2005-08-05   
410-878 8 Baltimore MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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