Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 2593 CORE COMMUNICATIONS, INC.- MD

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
301-823 0 Washington Zone 13 MD   236   2018-06-16   
301-823 1 Washington Zone 13 MD   236   2018-06-16   
301-823 4 Washington Zone 13 MD   236   2018-06-16   
301-823 6 Washington Zone 13 MD   236   2019-04-29   
301-823 7 Washington Zone 13 MD   236   2019-04-29   
301-824 8 Smithsburg MD   240   2004-03-28   
301-833 0 Washington Zone 14 MD   236   2004-03-26   
301-834 0 Brunswick MD   240   2004-03-28   
301-845 3 Walkersville MD   240   2004-03-28   
301-857 A Clear Spring MD HGTWMD53DS0  240      
301-857 0 Clear Spring MD   240   2002-09-10   
301-859 1 Oakland MD   240   2019-05-02   
301-859 9 Oakland MD   240   2019-05-02   
301-860 8 Washington Zone 14 MD   236   2018-10-23   
301-867 3 Washington Zone 14 MD   236   2019-04-29   
301-867 4 Washington Zone 14 MD   236   2019-04-29   
301-882 A New Market MD HGTWMD53DS0  240      
301-882 0 New Market MD   240   2004-05-09   
301-886 0 Washington Zone 13 MD   236   2004-03-26   
301-886 1 Washington Zone 13 MD   236   2019-04-15   
301-886 2 Washington Zone 13 MD   236   2019-04-15   
301-886 4 Washington Zone 13 MD   236   2019-04-15   
301-886 5 Washington Zone 13 MD   236   2019-04-15   
301-886 6 Washington Zone 13 MD   236   2019-04-15   
301-886 7 Washington Zone 13 MD   236   2019-04-15   
301-886 9 Washington Zone 13 MD   236   2019-04-15   
301-901 0 Washington Zone 13 MD   236   2018-10-23   
301-901 3 Washington Zone 13 MD   236   2018-10-23   
301-901 5 Washington Zone 13 MD   236   2018-10-23   
301-901 7 Washington Zone 13 MD   236   2018-10-23   
301-901 8 Washington Zone 13 MD   236   2018-10-23   
301-914 0 Oakland MD   240   2018-10-22   
301-914 2 Oakland MD   240   2018-10-22   
301-914 3 Oakland MD   240   2018-10-22   
301-914 4 Oakland MD   240   2018-10-22   
301-914 5 Oakland MD   240   2018-10-22   
301-914 6 Oakland MD   240   2018-10-22   
301-914 7 Oakland MD   240   2018-10-22   
301-914 8 Oakland MD   240   2018-10-22   
301-914 9 Oakland MD   240   2018-10-22   
301-923 0 Washington Zone 13 MD   236   2018-10-23   
301-923 1 Washington Zone 13 MD   236   2018-10-23   
301-923 2 Washington Zone 13 MD   236   2019-04-29   
301-923 3 Washington Zone 13 MD   236   2019-04-29   
301-923 6 Washington Zone 13 MD   236   2019-04-29   
301-923 7 Washington Zone 13 MD   236   2019-04-29   
301-923 8 Washington Zone 13 MD   236   2018-10-23   
301-935 1 Washington Zone 13 MD   236   2018-10-23   
301-935 2 Washington Zone 13 MD   236   2018-10-23   
301-935 3 Washington Zone 13 MD   236   2018-10-23   

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

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