Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9JJR callsign genealogy
Currently held by Sirovatka, John E
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 W9JJR's current licensee, walking backwards.
- Sirovatka, John EILgranted 2023-01-20cancelled 2023-02-11
Successor callsigns
Callsigns held now by people who previously held W9JJR.
No current licensee on record previously held this callsign.