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: 495

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-495 A Parkville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238      
443-495 0 Parkville MD   145J TERRA NOVA TELECOM INC. 238   2024-10-12   
443-495 1 Parkville MD   145J TERRA NOVA TELECOM INC. 238   2025-07-25   
443-495 2 Parkville MD   318J COMCAST IP PHONE, LLC 238   2016-05-18   
443-495 3 Parkville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2017-07-31   
443-495 4 Parkville MD   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2025-09-29   
443-495 5 Parkville MD   071F BANDWIDTH.COM CLEC, LLC - MD 238   2020-09-12   
443-495 6 Parkville MD   876D ONVOY, LLC - MD 238   2018-05-27   
443-495 7 Parkville MD   318J COMCAST IP PHONE, LLC 238   2015-09-25   
443-495 8 Parkville MD   964H BARR TELL USA, INC. 238   2016-12-17   
443-495 9 Parkville MD   6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238   2015-08-14   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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