Local Calling Guide

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

NXX: 381

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-381 A Reisterstown MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-381 0 Reisterstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-381 1 Reisterstown MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2019-10-13   
443-381 2 Reisterstown MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-01-01   
443-381 3 Reisterstown MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-11-24   
443-381 4 Reisterstown MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2017-11-24   
443-381 5 Reisterstown MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-03-16   
443-381 6 Reisterstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-03-09   
443-381 7 Reisterstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-05-03   
443-381 8 Reisterstown MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2018-02-08   
443-381 9 Reisterstown MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2019-04-05   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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