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: 596

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-596 A Essex MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-596 0 Essex MD   876D ONVOY, LLC - MD 238      
443-596 1 Essex MD BLTMMDCH40Z  6855 OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC 238      
443-596 2 Essex MD   2593 CORE COMMUNICATIONS, INC.- MD 238      
443-596 3 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-596 4 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-596 5 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-596 6 Essex MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238      
443-596 7 Essex MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238      
443-596 8 Essex MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238      
443-596 9 Essex MD   876D ONVOY, LLC - MD 238      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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