Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: WHMRMDATPS2

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
443-379 A Pikesville MD 107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 238   2007-04-20   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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