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: 391

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-391 A Damascus MD DMSCMDDEDS0  9212 VERIZON MARYLAND, INC. 236      
301-391 0 Damascus MD   515J IP HORIZON LLC 236   2016-05-31   
301-391 1 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-391 2 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-391 3 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-391 4 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-391 5 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-391 6 Damascus MD DMSCMDDEDS0  9212 VERIZON MARYLAND, INC. 236      
301-391 7 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-391 8 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   
301-391 9 Damascus MD   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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