Local Calling Guide

Switch search

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

Switch: FRDRMDLH

Switch (link to prefixes) Switch name Company
FRDRMDLH00T FREDERICK   
FRDRMDLH7MD   281E YMAX COMMUNICATIONS CORP. - MD 

Last updated: Sat, 02 May 2026 12:20:53 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.