Local Calling Guide

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Switch: DLLSTX23

Switch (link to prefixes) Switch name Company
DLLSTX230MD   6833 HELMSCO, INC. 
DLLSTX23BMD   7399 WESTEL, INC. - TX 
DLLSTX23WD3 DALLAS  6833 HELMSCO, INC. 
DLLSTX23X9X   135H PEOPLES COMMUNICATION, INC. -TX 
DLLSTX23XRZ    

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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