Local Calling Guide

Area code/prefix search

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North East, MD

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
443-877 6 BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-12-30   
443-877 7 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2014-05-02   
443-877 8 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-01-08   
443-877 9 BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-02-13   
443-967 A NRTEMDNERS0  9212 VERIZON MARYLAND, INC. 238      
443-967 0 NRTEMDNERS0  9212 VERIZON MARYLAND, INC. 238      
443-967 1 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 2 BLTMMDCH3MD  228C IDT AMERICA, CORP. - MD 238   2012-01-08   
443-967 3 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2013-05-23   
443-967 4 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2016-08-22   
443-967 5 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-967 6 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-21   
443-967 7 BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-967 8 BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-967 9 BLTMMDCHFMD  5562 METROPCS, INC. 238   2018-12-31   
667-647 A BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238      
667-647 0 CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2022-10-01   
667-647 2 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-647 3 BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-07-12   
667-647 4 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-04   
667-647 6 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2021-06-26   
667-647 7 BLTMMDCHXUX  624H ONVOY SPECTRUM, LLC 238   2022-02-04   

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

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