Local Calling Guide

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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
240-318 A Washington Zone 16 MD CLTNMDCLDS0  9212 VERIZON MARYLAND, INC. 236      
240-318 0 Washington Zone 16 MD   9212 VERIZON MARYLAND, INC. 236      
240-318 1 Washington Zone 16 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-04   
240-318 2 Washington Zone 16 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2008-02-22   
240-318 3 Washington Zone 16 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2009-11-27   
240-318 4 Washington Zone 16 MD   5562 METRO PCS, INC. 236   2013-06-16   
240-318 5 Washington Zone 16 MD   107D COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD 236   2013-09-08   
240-318 6 Washington Zone 16 MD   5562 METRO PCS, INC. 236   2015-02-05   
240-318 7 Washington Zone 16 MD   876D ONVOY, LLC - MD 236   2016-03-11   
240-318 8 Washington Zone 16 MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 236   2004-04-06   
240-318 9 Washington Zone 16 MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-04   

Last updated: Thu, 31 Jan 2019 11:20:40 UTC

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