Local Calling Guide

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Search area code/prefix (NPA/NXX)
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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 486

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-486 A Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-486 0 Prince Frederick MD   145J TERRA NOVA TELECOM INC. 238   2021-07-16   
443-486 1 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-10   
443-486 2 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2006-03-14   
443-486 3 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2016-03-10   
443-486 4 Prince Frederick MD PRFRMDPFRS1  9212 VERIZON MARYLAND, INC. 238   2004-07-15   
443-486 5 Prince Frederick MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2013-09-06   
443-486 6 Prince Frederick MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2021-09-23   
443-486 7 Prince Frederick MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238   2008-02-13   
443-486 8 Prince Frederick MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2008-03-31   
443-486 9 Prince Frederick MD BLTOMDKHBMD  6395 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD 238   2021-12-15   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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