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: 206

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-206 A Washington Zone 14 MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-206 0 Washington Zone 14 MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-206 1 Washington Zone 14 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2010-04-18   
240-206 2 Washington Zone 14 MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236      
240-206 3 Washington Zone 14 MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236   2005-08-15   
240-206 4 Washington Zone 14 MD WASHDCCZDS0  4773 XO MARYLAND, LLC 236   2005-08-15   
240-206 5 Washington Zone 14 MD WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2007-09-13   
240-206 6 Washington Zone 14 MD MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-15   
240-206 7 Washington Zone 14 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236   2008-10-01   
240-206 8 Washington Zone 14 MD ARTNVAARXDY  318J COMCAST IP PHONE LLC 236   2007-11-01   
240-206 9 Washington Zone 14 MD ARTNVAARXDY  318J COMCAST IP PHONE LLC 236   2006-03-14   

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

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