Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 301 [Rate centres in NPA 301] [Dial plan for NPA 301]

NXX: 334

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-334 A Oakland MD OKLDMDOKDS0  9212 VERIZON MARYLAND, INC. 240      

Last updated: Sun, 06 Oct 2024 02:51:32 UTC

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