Local Calling Guide

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Switch: HSTQTXRG

Switch (link to prefixes) Switch name Company
HSTQTXRG6MD   139F WORLDCALL INTERCONNECT INC. 
HSTQTXRG6MD   473F USFON, INC. - TX 

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

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