Local Calling Guide

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Switch: CHTGTNMA

Switch (link to prefixes) Switch name Company
CHTGTNMATMD   7421 AT&T - LOCAL 
CHTGTNMAX9X    
CHTGTNMAXTX   6630 SPOK, INC.  
CHTGTNMAXVX   516C AT&T CORP. 
CHTGTNMAXYX    

Last updated: Sun, 17 May 2026 03:26:51 UTC

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