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
301-629 4 Washington Zone 14 (Baltimore LATA) MD   238   2018-10-24   
301-629 5 Washington Zone 14 (Baltimore LATA) MD   238   2018-10-24   
301-629 6 Washington Zone 14 (Baltimore LATA) MD   238   2019-04-30   
301-629 7 Washington Zone 14 (Baltimore LATA) MD   238   2019-04-30   
301-629 8 Washington Zone 14 (Baltimore LATA) MD   238   2018-10-24   
301-629 9 Washington Zone 14 (Baltimore LATA) MD   238   2019-04-30   
301-632 0 Waldorf MD   236   2018-10-23   
301-632 1 Waldorf MD   236   2018-10-23   
301-638 6 Waldorf MD   236   2019-04-29   
301-666 0 Washington Zone 14 MD   236   2018-06-16   
301-666 1 Washington Zone 14 MD   236   2018-10-23   
301-666 4 Washington Zone 14 MD   236   2018-10-23   
301-666 5 Washington Zone 14 MD   236   2018-06-16   
301-666 6 Washington Zone 14 MD   236   2012-08-26   
301-666 8 Washington Zone 14 MD   236   2018-06-16   
301-666 9 Washington Zone 14 MD   236   2018-10-23   
301-685 2 Damascus MD   236   2019-04-29   
301-685 4 Damascus MD   236   2019-04-29   
301-689 4 Frostburg MD   240   2004-03-28   
301-691 0 Poolesville MD   236   2004-03-26   
301-692 5 Washington Zone 11 MD   236   2018-10-24   
301-692 6 Washington Zone 11 MD   236   2018-10-24   
301-692 8 Washington Zone 11 MD   236   2018-10-24   
301-692 9 Washington Zone 11 MD   236   2018-10-24   
301-715 1 Washington Zone 15 MD   236   2018-06-16   
301-715 4 Washington Zone 15 MD   236   2018-06-16   
301-715 5 Washington Zone 15 MD   236   2018-06-16   
301-719 0 Washington Zone 16 MD   236   2018-10-23   
301-719 6 Washington Zone 16 MD   236   2019-04-22   
301-719 7 Washington Zone 16 MD   236   2019-04-22   
301-719 8 Washington Zone 16 MD   236   2018-10-23   
301-719 9 Washington Zone 16 MD   236   2019-04-22   
301-720 3 Brandywine MD   236   2019-04-29   
301-720 4 Brandywine MD   236   2019-04-29   
301-720 5 Brandywine MD   236   2018-06-16   
301-720 6 Brandywine MD   236   2018-06-16   
301-720 7 Brandywine MD   236   2018-06-16   
301-750 A Friendsville MD HGTWMD53DS0  240      
301-750 0 Friendsville MD FRDRMDFRPS0  240   2004-05-09   
301-756 2 Washington Zone 14 MD   236   2019-04-29   
301-761 0 Washington Zone 11 MD   236   2004-03-26   
301-764 0 Waldorf MD   236   2019-07-30   
301-764 3 Waldorf MD   236   2019-04-29   
301-764 4 Waldorf MD   236   2019-04-29   
301-764 9 Waldorf MD   236   2019-07-30   
301-782 0 Brandywine MD   236   2019-04-29   
301-789 A Washington Zone 4 MD CHCHMDBEPS0  236   2024-01-16   
301-789 0 Washington Zone 4 MD   236   2002-10-05   
301-794 2 Washington Zone 14 MD   236   2019-04-29   
301-799 A Keedysville MD HGTWMD53DS0  240      

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Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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