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
240-523 A La Plata MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-523 0 La Plata MD   4773 XO MARYLAND, LLC 236      
240-523 1 La Plata MD   2589 US LEC OF MARYLAND, INC. 236   2004-02-05   
240-523 2 La Plata MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-07-15   
240-523 3 La Plata MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-10-17   
240-523 4 La Plata MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-03-02   
240-523 5 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 6 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 7 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 8 La Plata MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-523 9 La Plata MD   4773 XO MARYLAND, LLC 236      

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

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