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: 550

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-550 A Washington Zone 10 MD BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      
240-550 0 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 1 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 2 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 3 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 4 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 5 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 6 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 7 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 8 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   
240-550 9 Washington Zone 10 MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2009-05-17   

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

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