Local Calling Guide

Switch search

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

Switch: SMFRCTPU

Switch (link to prefixes) Switch name Company
SMFRCTPU4MD   4800 LEVEL 3 COMMUNICATIONS, LLC - CT 
SMFRCTPU6MD   671J U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.