Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Washington Zone 13, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
240-592 0   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 1   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 2   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 3   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 4   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 5   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 6   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 7   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 8   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-592 9   9212 VERIZON MARYLAND, INC. 236   2016-07-31   
240-616 A WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-616 0   515J IP HORIZON LLC 236   2013-09-06   
240-616 1 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-12-01   
240-616 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2017-07-12   
240-616 3 WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      
240-616 4 VINNVACBDS0  876D ONVOY, LLC - MD 236   2012-10-07   
240-616 5 BTVLMD127MD  5562 METROPCS, INC. 236   2015-01-03   
240-616 6 VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-02-18   
240-616 7 WASIDCRG7MD  508J CENTURYLINK COMMUNICATIONS, LLC 236   2013-10-01   
240-616 8 BTVLMD127MD  5562 METROPCS, INC. 236   2015-01-03   
240-616 9   876D ONVOY, LLC - MD 236   2024-05-03   
240-624 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-624 0 WASHDCDP8MD  071F BANDWIDTH.COM CLEC, LLC - MD 236   2012-01-15   
240-624 1   2593 CORE COMMUNICATIONS, INC.- MD 236   2018-10-23   
240-624 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2008-10-05   
240-624 3 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-624 4 VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-04-28   
240-624 5 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-624 6 VINNVACBDS0  876D ONVOY, LLC - MD 236   2016-04-28   
240-624 7 VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
240-624 8 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-624 9 VINNVACBDS0  876D ONVOY, LLC - MD 236   2014-10-24   
240-684 A CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-684 0 MCLNVA23DS4  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2010-08-06   
240-684 1 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-684 2 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-684 3 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-684 4 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2021-05-21   
240-684 5 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-684 6 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-684 7   2593 CORE COMMUNICATIONS, INC.- MD 236   2019-04-29   
240-684 8 VINNVACBDS0  876D ONVOY, LLC - MD 236   2015-06-27   
240-684 9 CLPKMDBWDS0  9212 VERIZON MARYLAND, INC. 236      
240-757 A WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-757 0 BTVLMD127MD  5562 METROPCS, INC. 236   2022-10-14   
240-757 1 VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-02-18   
240-757 2 VINNVACBDS0  876D ONVOY, LLC - MD 236   2021-02-18   
240-757 3 WASHDC12DS6  568G PEERLESS NETWORK OF MARYLAND, LLC 236      
240-757 4 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-03-17   
240-757 5 WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236   2022-03-17   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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