Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5CYF callsign genealogy
Currently held by ROBERTSON, JOHN T
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 W5CYF's current licensee, walking backwards.
- ROBERTSON, JOHN TMSgranted 2009-10-19cancelled 2010-01-05
Successor callsigns
Callsigns held now by people who previously held W5CYF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5CYF, oldest first.
- ROBERTSON, EDWIN B LA1997-02-03 → cancelled 2000-10-03
- ROBERTSON, JOHN T TX2019-11-05 active