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
240-544 A Washington Zone 14 MD TYCRVA03DS0  2589 US LEC OF MARYLAND, INC. 236      
240-544 0 Washington Zone 14 MD   2589 US LEC OF MARYLAND, INC. 236      
240-544 1 Washington Zone 14 MD   2589 US LEC OF MARYLAND, INC. 236      
240-544 2 Washington Zone 14 MD   2589 US LEC OF MARYLAND, INC. 236      
240-544 3 Washington Zone 14 MD   2589 US LEC OF MARYLAND, INC. 236      
240-544 4 Washington Zone 14 MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 236   2004-04-06   
240-544 5 Washington Zone 14 MD   2589 US LEC OF MARYLAND, INC. 236      
240-544 6 Washington Zone 14 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-14   
240-544 7 Washington Zone 14 MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-05-14   
240-544 8 Washington Zone 14 MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 236   2014-02-09   
240-544 9 Washington Zone 14 MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2018-10-23   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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