Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4RRO callsign genealogy
Currently held by Allen, Timothy 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 KC4RRO's current licensee, walking backwards.
- KOTT, ANTHONYTXgranted 2024-02-29cancelled 2024-04-02
Successor callsigns
Callsigns held now by people who previously held KC4RRO.
- Allen, Timothy FGAgranted 2018-08-14
All historical holders
Every license row we've seen with the callsign KC4RRO, oldest first.
- Allen, Timothy F GA2000-09-01 → cancelled 2008-11-01
- KOTT, ANTHONY TX2024-04-02 active