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: 609

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-609 A Sykesville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-609 0 Sykesville MD   829J PAETEC ITEL, LLC 238      
443-609 1 Sykesville MD   829J PAETEC ITEL, LLC 238   2003-03-02   
443-609 2 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2016-08-15   
443-609 3 Sykesville MD   829J PAETEC ITEL, LLC 238   2006-08-18   
443-609 4 Sykesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2007-01-19   
443-609 5 Sykesville MD BLTMMDCHX7X  073H TELNYX LLC 238   2017-04-26   
443-609 6 Sykesville MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2018-02-26   
443-609 7 Sykesville MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2018-07-28   
443-609 8 Sykesville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   
443-609 9 Sykesville MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-04   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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