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: 782

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-782 A Damascus MD   876D ONVOY, LLC - MD 236      
240-782 1 Damascus MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2025-07-11   
240-782 2 Damascus MD   876D ONVOY, LLC - MD 236   2014-10-24   
240-782 3 Damascus MD   876D ONVOY, LLC - MD 236   2014-10-24   
240-782 5 Damascus MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2021-04-09   
240-782 6 Damascus MD   071F BANDWIDTH.COM CLEC, LLC - MD 236   2015-07-04   
240-782 7 Damascus MD   508J CENTURYLINK COMMUNICATIONS, LLC 236   2014-06-25   
240-782 8 Damascus MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   
240-782 9 Damascus MD   568G PEERLESS NETWORK OF MARYLAND, LLC 236   2013-05-03   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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