Local Calling Guide

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

NXX: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-375 A Hampstead MD BLTMMDCH40Z  5562 METROPCS, INC. 238      
443-375 0 Hampstead MD   5562 METROPCS, INC. 238      
443-375 1 Hampstead MD   5562 METROPCS, INC. 238      
443-375 2 Hampstead MD   5562 METROPCS, INC. 238      
443-375 3 Hampstead MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-375 4 Hampstead MD   4492 VDL, INC. DBA GLOBAL TELECOM BROKERS - MD 238   2004-02-14   
443-375 5 Hampstead MD   876D ONVOY, LLC - MD 238   2024-04-19   
443-375 6 Hampstead MD   5562 METROPCS, INC. 238      
443-375 7 Hampstead MD   5562 METROPCS, INC. 238      
443-375 8 Hampstead MD   5562 METROPCS, INC. 238      
443-375 9 Hampstead MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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