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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
301-889 A Washington Zone 14 (Baltimore LATA) MD GLVLMDGLRS1  9212 VERIZON MARYLAND, INC. 238      
301-889 0 Washington Zone 14 (Baltimore LATA) MD   9212 VERIZON MARYLAND, INC. 238      
301-889 1 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-09-05   
301-889 3 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-09-05   
301-889 4 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-09-05   
301-889 5 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-09-05   
301-889 6 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-09-05   
301-889 7 Washington Zone 14 (Baltimore LATA) MD   530H WIDE VOICE, LLC - MD 238   2016-09-05   
301-889 8 Washington Zone 14 (Baltimore LATA) MD   876D ONVOY, LLC - MD 238   2016-04-07   
301-889 9 Washington Zone 14 (Baltimore LATA) MD   876D ONVOY, LLC - MD 238   2016-04-07   

Last updated: Sat, 14 Sep 2019 01:44:23 UTC

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