Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 3910 CAVALIER TELEPHONE MID-ATLANTIC, LLC - MD

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
443-874 9 Baltimore MD   238      
443-887 0 Catonsville MD   238   2010-07-03   
443-887 1 Catonsville MD   238   2010-07-03   
443-887 2 Catonsville MD   238   2010-07-03   
443-887 3 Catonsville MD   238   2010-07-03   
443-887 4 Catonsville MD   238   2010-07-03   
443-887 5 Catonsville MD   238   2010-07-03   
443-887 6 Catonsville MD   238   2010-07-03   
443-887 7 Catonsville MD   238   2010-07-03   
443-887 8 Catonsville MD   238   2010-07-03   
443-887 9 Catonsville MD   238   2010-07-03   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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