Local Calling Guide

Switch search

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

Switch: WASHDCCH

Switch (link to prefixes) Switch name Company
WASHDCCHDS0 WASHINGTON CONGRESS HEIGHTS  9211 VERIZON WASHINGTON DC, INC. 

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.