Local Calling Guide

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

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
443-329 A Waterloo (Washington DC LATA) MD WASJDCDCDS0  6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
443-329 0 Waterloo (Washington DC LATA) MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
443-329 1 Waterloo (Washington DC LATA) MD   6050 GLOBAL CROSSING LOCAL SERVICES, INC.-MD 236      
443-329 2 Waterloo (Washington DC LATA) MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-02-20   
443-329 3 Waterloo (Washington DC LATA) MD   281E YMAX COMMUNICATIONS CORP. - MD 236   2009-01-15   
443-329 4 Waterloo (Washington DC LATA) MD   6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
443-329 6 Waterloo (Washington DC LATA) MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2019-04-30   
443-329 7 Waterloo (Washington DC LATA) MD   2593 CORE COMMUNICATIONS, INC. - MD 236   2019-04-30   
443-329 8 Waterloo (Washington DC LATA) MD   073H TELNYX LLC 236   2017-04-27   

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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