Local Calling Guide

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NPA: 410 [Rate centres in NPA 410] [Dial plan for NPA 410]

NXX: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-457 A Darlington MD DRTNMDDRRS0  9212 VERIZON MARYLAND, INC. 238      
410-457 0 Darlington MD DRTNMDDRRS0  9212 VERIZON MARYLAND, INC. 238      
410-457 1 Darlington MD BLTMMDCHAMD  1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 238   2003-02-25   
410-457 2 Darlington MD DRTNMDDRRS0  9212 VERIZON MARYLAND, INC. 238      
410-457 3 Darlington MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-10-08   
410-457 4 Darlington MD DRTNMDDRRS0  9212 VERIZON MARYLAND, INC. 238      
410-457 5 Darlington MD DRTNMDDRRS0  9212 VERIZON MARYLAND, INC. 238      
410-457 6 Darlington MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2004-03-29   
410-457 7 Darlington MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2006-03-03   
410-457 8 Darlington MD BLTMMDCH47Z  420C ARMSTRONG TELECOMMUNICATIONS, INC. - MD 238   2008-09-08   
410-457 9 Darlington MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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