Local Calling Guide

Switch search

Search by CLLI code
  • Enter full or partial CLLI code to see all matching switches.

Switch: DLLSTXNO

Switch (link to prefixes) Switch name Company
DLLSTXNODS0 Northlake  9533 SOUTHWESTERN BELL 
DLLSTXNODS0 Northlake  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.