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: 316

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-316 A Woodlawn MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-316 0 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-12-02   
443-316 1 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2024-12-02   
443-316 2 Woodlawn MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2023-05-18   
443-316 3 Woodlawn MD BLTMMDCH14Z  2697 CTC COMMUNICATIONS CORP. - MD 238   2006-05-11   
443-316 4 Woodlawn MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-316 5 Woodlawn MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-316 6 Woodlawn MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-316 7 Woodlawn MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-04-07   
443-316 8 Woodlawn MD BLTMMDCHXFX  318J COMCAST IP PHONE, LLC 238   2008-02-01   
443-316 9 Woodlawn MD CLMAMDORGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 238   2020-05-01   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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