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: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-510 A Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-510 0 Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-510 1 Washington Zone 15 MD WASHDCCZDS1  4773 XO MARYLAND, LLC 236   2007-03-26   
240-510 2 Washington Zone 15 MD WASHDCCZDS1  4773 XO MARYLAND, LLC 236   2007-03-26   
240-510 3 Washington Zone 15 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-01-12   
240-510 4 Washington Zone 15 MD BTVLMD127MD  5562 METROPCS, INC. 236   2013-06-16   
240-510 5 Washington Zone 15 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2007-11-25   
240-510 6 Washington Zone 15 MD BTVLMD127MD  5562 METROPCS, INC. 236   2013-06-16   
240-510 7 Washington Zone 15 MD BTVLMD127MD  5562 METROPCS, INC. 236   2014-05-10   
240-510 8 Washington Zone 15 MD BTVLMD127MD  5562 METROPCS, INC. 236   2014-08-22   
240-510 9 Washington Zone 15 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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