Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3JLR callsign genealogy
Currently held by ROUSE, JOHN 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 W3JLR's current licensee, walking backwards.
- Rosol, Joseph LMDgranted 2026-05-22cancelled 2026-09-04
Successor callsigns
Callsigns held now by people who previously held W3JLR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3JLR, oldest first.
- ROUSE, JOHN L MD2008-01-25 → cancelled 2020-03-04
- Rosol, Joseph L MD2026-09-04 active