Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1RCD callsign genealogy
Currently held by Dirr, Ryan C
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W1RCD's current licensee, walking backwards.
- Dirr, Ryan COHgranted 2005-06-22cancelled 2005-07-12
Successor callsigns
Callsigns held now by people who previously held W1RCD.
No current licensee on record previously held this callsign.