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: 553

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
240-553 A Washington Zone 13 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-553 0 Washington Zone 13 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-553 1 Washington Zone 13 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-553 3 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-22   
240-553 4 Washington Zone 13 MD BTVLMD127MD  5562 METROPCS, INC. 236   2018-06-18   
240-553 5 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-12-22   
240-553 6 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2022-11-08   
240-553 7 Washington Zone 13 MD ARTNVAARXDY  318J COMCAST IP PHONE, LLC 236   2013-09-05   
240-553 8 Washington Zone 13 MD VINNVACBDS0  876D ONVOY, LLC - MD 236   2011-04-23   
240-553 9 Washington Zone 13 MD WASKDCFNPS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

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

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