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: 464

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-464 A Churchville MD   829J PAETEC ITEL, LLC 238   2025-04-01   
443-464 0 Churchville MD   876D ONVOY, LLC - MD 238   2015-10-04   
443-464 1 Churchville MD   876D ONVOY, LLC - MD 238   2016-03-25   
443-464 2 Churchville MD   876D ONVOY, LLC - MD 238   2016-03-25   
443-464 3 Churchville MD   321J HD CARRIER LLC 238   2016-05-14   
443-464 4 Churchville MD   829J PAETEC ITEL, LLC 238   2010-05-15   
443-464 5 Churchville MD   829J PAETEC ITEL, LLC 238   2010-05-15   
443-464 6 Churchville MD   321J HD CARRIER LLC 238   2016-05-14   
443-464 7 Churchville MD   321J HD CARRIER LLC 238   2016-05-14   
443-464 8 Churchville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-05   
443-464 9 Churchville MD   568G PEERLESS NETWORK OF MARYLAND, LLC 238   2013-05-05   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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