Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 526

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-526 A Havre de Grace MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-526 0 Havre de Grace MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2019-06-02   
443-526 1 Havre de Grace MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2015-02-13   
443-526 2 Havre de Grace MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238      
443-526 3 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-24   
443-526 4 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-24   
443-526 5 Havre de Grace MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-526 6 Havre de Grace MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-08-18   
443-526 7 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-08-01   
443-526 8 Havre de Grace MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2015-08-01   
443-526 9 Havre de Grace MD BLTMMDCH25Z  8697 BALTIMORE-WASHINGTON TELEPHONE (BWT) 238   2015-06-13   

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

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