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: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
410-587 A Arbutus MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 0 Arbutus MD   876D ONVOY, LLC - MD 238   2016-03-07   
410-587 1 Arbutus MD   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238      
410-587 2 Arbutus MD   876D ONVOY, LLC - MD 238   2016-03-07   
410-587 3 Arbutus MD   321J HD CARRIER LLC 238   2016-05-14   
410-587 4 Arbutus MD   321J HD CARRIER LLC 238   2016-05-14   
410-587 5 Arbutus MD   321J HD CARRIER LLC 238   2016-05-14   
410-587 6 Arbutus MD   321J HD CARRIER LLC 238   2016-05-14   
410-587 7 Arbutus MD   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-05-28   
410-587 8 Arbutus MD   321J HD CARRIER LLC 238   2016-05-14   
410-587 9 Arbutus MD   321J HD CARRIER LLC 238   2016-05-14   

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

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