Confidence: Medium · Source: FCC ULS · As of 2026-10-24
K0JNK callsign genealogy
Currently held by Krol, John N
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 K0JNK's current licensee, walking backwards.
- Krol, John NCOgranted 2025-08-30cancelled 2026-09-11
Successor callsigns
Callsigns held now by people who previously held K0JNK.
No current licensee on record previously held this callsign.