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: 337

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-337 A Sparrows Point MD BLTMMDCHYMD  2593 CORE COMMUNICATIONS, INC.- MD 238      
443-337 0 Sparrows Point MD   5562 METROPCS, INC. 238   2021-04-16   
443-337 1 Sparrows Point MD   5562 METROPCS, INC. 238   2019-10-13   
443-337 2 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
443-337 3 Sparrows Point MD   5562 METROPCS, INC. 238   2017-10-01   
443-337 4 Sparrows Point MD   5562 METROPCS, INC. 238   2018-01-06   
443-337 5 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-337 6 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-337 7 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2018-06-16   
443-337 8 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-03-29   
443-337 9 Sparrows Point MD   2593 CORE COMMUNICATIONS, INC.- MD 238   2019-07-31   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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