Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 878

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
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      
410-878 9 Baltimore MD   829J PAETEC ITEL, LLC 238   2006-08-07   

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

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