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: 886

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-886 A Washington Zone 13 MD LARLMDLRDS0  9212 VERIZON MARYLAND, INC. 236      
301-886 0 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2004-03-26   
301-886 1 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-886 2 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-886 3 Washington Zone 13 MD   8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 236   2006-05-05   
301-886 4 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-886 5 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-886 6 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-886 7 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   
301-886 8 Washington Zone 13 MD   1958 ATX TELECOMMUNICATIONS SERVICES, LTD. 236   2003-04-06   
301-886 9 Washington Zone 13 MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-15   

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

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