Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5MJK callsign genealogy
Currently held by KELLER, MICHAEL 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 W5MJK's current licensee, walking backwards.
- KELLER, MICHAEL JTXgranted 2004-06-08cancelled 2004-06-29
Successor callsigns
Callsigns held now by people who previously held W5MJK.
No current licensee on record previously held this callsign.