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: 712

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-712 A Reisterstown MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-712 0 Reisterstown MD   829J PAETEC ITEL, LLC 238      
443-712 1 Reisterstown MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2022-04-25   
443-712 2 Reisterstown MD   829J PAETEC ITEL, LLC 238      
443-712 3 Reisterstown MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-01-27   
443-712 4 Reisterstown MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2017-03-25   
443-712 5 Reisterstown MD BLTMMDCHXNX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 238   2007-07-30   
443-712 6 Reisterstown MD BLTMMDCH40Z  5562 METROPCS, INC. 238   2016-01-02   
443-712 7 Reisterstown MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-09-04   
443-712 8 Reisterstown MD BLTMMDCH45Z  071F BANDWIDTH.COM CLEC, LLC - MD 238   2010-02-25   
443-712 9 Reisterstown MD   829J PAETEC ITEL, LLC 238      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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