Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 4773 XO MARYLAND, LLC

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-548 7 Pikesville MD   238      
443-548 8 Pikesville MD   238      
443-548 9 Pikesville MD   238      
443-557 A Glen Burnie MD BLTMMDSN5MD  238      
443-557 0 Glen Burnie MD   238      
443-557 1 Glen Burnie MD   238      
443-557 2 Glen Burnie MD   238      
443-557 4 Glen Burnie MD   238      
443-557 5 Glen Burnie MD   238      
443-557 6 Glen Burnie MD   238      
443-557 7 Glen Burnie MD   238      
443-557 9 Glen Burnie MD   238      
443-558 A Aberdeen MD BLTMMDSN5MD  236      
443-558 0 Aberdeen MD   236      
443-558 2 Aberdeen MD   236   2013-08-07   
443-558 3 Aberdeen MD   236      
443-558 7 Aberdeen MD   236      
443-568 A Arbutus MD BLTMMDSN5MD  238      
443-568 0 Arbutus MD   238      
443-568 1 Arbutus MD   238      
443-568 2 Arbutus MD   238      
443-568 4 Arbutus MD   238      
443-568 5 Arbutus MD   238      
443-568 9 Arbutus MD   238      
443-576 A Randallstown MD BLTMMDSN5MD  238      
443-576 0 Randallstown MD   238      
443-576 1 Randallstown MD   238      
443-576 4 Randallstown MD   238      
443-578 A Cockeysville MD BLTMMDSNDS5  238      
443-578 0 Cockeysville MD   238      
443-578 4 Cockeysville MD   238      
443-578 5 Cockeysville MD   238      
443-581 A Chase MD BLTMMDSNDS5  238      
443-586 A Dundalk MD BLTMMDSNDS5  238      
443-588 A Parkville MD BLTMMDSN5MD  238      
443-588 0 Parkville MD   238      
443-588 1 Parkville MD   238      
443-588 2 Parkville MD   238      
443-588 4 Parkville MD   238      
443-588 5 Parkville MD   238      
443-588 7 Parkville MD   238      
443-588 9 Parkville MD   238      
443-596 A Essex MD BLTMMDSNDS5  238      
443-627 9 Baltimore MD   238   2010-10-20   
443-637 A Armiger-Gibson Island MD BLTMMDSN5MD  238      
443-637 0 Armiger-Gibson Island MD   238      
443-637 3 Armiger-Gibson Island MD   238      
443-637 5 Armiger-Gibson Island MD   238      
443-650 A Reisterstown MD BLTMMDSN5MD  238      
443-650 0 Reisterstown MD   238      

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Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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