Local Calling Guide

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

NXX: 598

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-598 A Sherwood Forest MD   071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-598 2 Sherwood Forest MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2012-09-06   
443-598 3 Sherwood Forest MD   7228 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MD 238   2008-10-01   
443-598 4 Sherwood Forest MD   145J TERRA NOVA TELECOM INC. 238   2025-05-28   
443-598 5 Sherwood Forest MD   876D ONVOY, LLC - MD 238   2020-10-17   
443-598 6 Sherwood Forest MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2013-09-08   
443-598 7 Sherwood Forest MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-03-30   
443-598 8 Sherwood Forest MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-598 9 Sherwood Forest MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   

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

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