Local Calling Guide

Switch search

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

Switch: ULLNILXE

Switch (link to prefixes) Switch name Company
ULLNILXERS0 ULLIN  1015 FRONTIER NORTH, INC. - IL 

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.