Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0TXV callsign genealogy
Currently held by Polson II, 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 KC0TXV's current licensee, walking backwards.
- Polson II, Robert FCOgranted 2013-05-08cancelled 2014-06-27
Successor callsigns
Callsigns held now by people who previously held KC0TXV.
All historical holders
Every license row we've seen with the callsign KC0TXV, oldest first.
- Jarvinen, Donald A SD2005-02-24 → cancelled 2005-03-18
- Polson II, Robert F CO2014-06-27 → cancelled 2015-05-08