Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5JLM callsign genealogy
Currently held by MERCER, JAMES 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 W5JLM's current licensee, walking backwards.
- Madden, Joe LARgranted 2012-10-18cancelled 2013-12-17
Successor callsigns
Callsigns held now by people who previously held W5JLM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5JLM, oldest first.
- MERCER, JAMES L WI2000-09-30 → cancelled 2012-10-02
- Madden, Joe L AR2023-10-17 active