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: 973

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-973 A Washington Zone 14 (Baltimore LATA) MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
301-973 0 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
301-973 1 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
301-973 2 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
301-973 3 Washington Zone 14 (Baltimore LATA) MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
301-973 4 Washington Zone 14 (Baltimore LATA) MD BLTMMDCHXVX  321J HD CARRIER LLC 238      
301-973 5 Washington Zone 14 (Baltimore LATA) MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
301-973 6 Washington Zone 14 (Baltimore LATA) MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238      
301-973 7 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
301-973 8 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
301-973 9 Washington Zone 14 (Baltimore LATA) MD   2593 CORE COMMUNICATIONS, INC.- MD 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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