Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7TUC callsign genealogy
Currently held by HARPER, ROBERT F
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 K7TUC's current licensee, walking backwards.
- Guerassio, James DORgranted 2012-02-03cancelled 2012-02-25
Successor callsigns
Callsigns held now by people who previously held K7TUC.
- HARPER, ROBERT FTXgranted 2019-08-15
All historical holders
Every license row we've seen with the callsign K7TUC, oldest first.
- HARPER, ROBERT F TX2002-03-20 → cancelled 2009-10-16
- GUERASSIO, JAMES D OR2022-01-29 active