Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 963

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-963 A Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-963 0 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2024-12-31   
443-963 1 Baltimore MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2015-12-26   
443-963 2 Baltimore MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2012-03-25   
443-963 3 Baltimore MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2012-05-19   
443-963 4 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-24   
443-963 5 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-24   
443-963 6 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-24   
443-963 7 Baltimore MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2012-02-24   
443-963 8 Baltimore MD   145J TERRA NOVA TELECOM INC. 238   2022-08-02   
443-963 9 Baltimore MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-07-15   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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