Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K4KRL callsign genealogy
Currently held by TSCHAPPAT, MELVIN A
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 K4KRL's current licensee, walking backwards.
- LARKIN, KEVIN RSCgranted 2015-12-21cancelled 2024-09-21
Successor callsigns
Callsigns held now by people who previously held K4KRL.
- LARKIN, KEVIN RNYgranted 2024-10-25
All historical holders
Every license row we've seen with the callsign K4KRL, oldest first.
- TSCHAPPAT, MELVIN A FL2012-11-06 → cancelled 2022-08-30
- LARKIN, KEVIN R SC2024-09-21 → cancelled 2024-10-25