Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3TCO callsign genealogy
Currently held by TAFELSKI, FRANCIS J
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 K3TCO's current licensee, walking backwards.
- TAFELSKI, FRANCIS JDEgranted 2015-12-08cancelled 2016-11-15
Successor callsigns
Callsigns held now by people who previously held K3TCO.
No current licensee on record previously held this callsign.