Local Calling Guide

Switch search

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

Switch: LARLMDLR

Switch (link to prefixes) Switch name Company
LARLMDLR3MD   2596 QUANTUM TELECOMMUNICATIONS, INC. - MD 
LARLMDLRDS0 LAUREL  9212 VERIZON MARYLAND, INC. 

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.