Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W4JLK callsign genealogy
Currently held by Kreyling, Joseph L
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 W4JLK's current licensee, walking backwards.
- Kreyling, Joseph LKYgranted 2004-04-16cancelled 2004-05-04
Successor callsigns
Callsigns held now by people who previously held W4JLK.
No current licensee on record previously held this callsign.