Local Calling Guide

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NPA: 443 [Rate centres in NPA 443] [Dial plan for NPA 443]

NXX: 951

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-951 A Annapolis MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-951 0 Annapolis MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-951 1 Annapolis MD BLTQMD018MD  145J TERRA NOVA TELECOM INC. 238   2024-12-29   
443-951 2 Annapolis MD BLTOMDXIDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC. - MD 238      
443-951 3 Annapolis MD BLTMMDCH42Z  876D ONVOY, LLC - MD 238   2014-10-25   
443-951 4 Annapolis MD BLTMMDSN6MD  6119 LEVEL 3 COMMUNICATIONS, LLC - MD 238      
443-951 5 Annapolis MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2008-07-27   
443-951 6 Annapolis MD BLTMMDCHX7X  073H TELNYX LLC 238   2022-12-26   
443-951 7 Annapolis MD BLTMMDDNDS2  7591 LEVEL 3 TELECOM OF MARYLAND, LLC - MD 238   2014-11-12   
443-951 8 Annapolis MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2008-07-27   
443-951 9 Annapolis MD BLTMMDSNDS6  281E YMAX COMMUNICATIONS CORP. - MD 238   2007-08-20   

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

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