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: 499

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-499 A Washington Zone 10 MD TYCRVA03DS0  2589 US LEC OF MARYLAND, INC. 236      
240-499 0 Washington Zone 10 MD   2589 US LEC OF MARYLAND, INC. 236      
240-499 1 Washington Zone 10 MD   2589 US LEC OF MARYLAND, INC. 236      
240-499 2 Washington Zone 10 MD   2589 US LEC OF MARYLAND, INC. 236      
240-499 3 Washington Zone 10 MD   2589 US LEC OF MARYLAND, INC. 236      
240-499 4 Washington Zone 10 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-06-02   
240-499 5 Washington Zone 10 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-06-02   
240-499 6 Washington Zone 10 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2005-06-02   
240-499 7 Washington Zone 10 MD   2589 US LEC OF MARYLAND, INC. 236      
240-499 8 Washington Zone 10 MD   318J COMCAST IP PHONE LLC 236   2006-10-09   
240-499 9 Washington Zone 10 MD   2589 US LEC OF MARYLAND, INC. 236      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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