Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 240 [Rate centres in NPA 240] [Dial plan for NPA 240]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-621 A Washington Zone 11 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236      
240-621 0 Washington Zone 11 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2011-01-27   
240-621 1 Washington Zone 11 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2013-06-16   
240-621 2 Washington Zone 11 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2013-06-16   
240-621 3 Washington Zone 11 MD   4773 XO MARYLAND, LLC 236   2011-10-23   
240-621 4 Washington Zone 11 MD   876D ONVOY, LLC - MD 236   2016-04-28   
240-621 5 Washington Zone 11 MD   876D ONVOY, LLC - MD 236   2016-04-28   
240-621 6 Washington Zone 11 MD   082H LOCAL ACCESS LLC - MD 236   2017-07-07   
240-621 7 Washington Zone 11 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2011-12-10   
240-621 8 Washington Zone 11 MD   073H TELNYX LLC 236   2017-03-14   
240-621 9 Washington Zone 11 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-24   

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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