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: 551

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-551 A Washington Zone 10 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-551 0 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 1 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 2 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 3 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 4 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 5 Washington Zone 10 MD   876D ONVOY, LLC - MD 236   2016-04-28   
240-551 6 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 7 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 8 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-06-09   
240-551 9 Washington Zone 10 MD   6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 236   2014-03-01   

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

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