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
240-256 A Leonardtown MD WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
240-256 0 Leonardtown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2003-02-27   
240-256 1 Leonardtown MD   2589 US LEC OF MARYLAND, INC. 236   2004-02-05   
240-256 2 Leonardtown MD   6664 SPRINT SPECTRUM L.P. 236   2004-02-28   
240-256 3 Leonardtown MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-03-03   
240-256 4 Leonardtown MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2014-11-15   
240-256 5 Leonardtown MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2004-05-16   
240-256 6 Leonardtown MD   073H TELNYX LLC 236   2017-03-14   
240-256 7 Leonardtown MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-256 8 Leonardtown MD   4773 XO MARYLAND, LLC 236   2005-08-15   
240-256 9 Leonardtown MD   7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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