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: 565

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-565 A Randallstown MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-565 0 Randallstown MD   829J PAETEC ITEL, LLC 238      
443-565 1 Randallstown MD   829J PAETEC ITEL, LLC 238      
443-565 2 Randallstown MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-10-09   
443-565 4 Randallstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-28   
443-565 6 Randallstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-04-28   
443-565 7 Randallstown MD BLTMMDDN2MD  508J CENTURYLINK COMMUNICATIONS, LLC 238   2014-06-25   
443-565 8 Randallstown MD BLTQMD01DS0  568G PEERLESS NETWORK OF MARYLAND, LLC 238   2021-03-24   
443-565 9 Randallstown MD   829J PAETEC ITEL, LLC 238      

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

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