Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7JU callsign genealogy
Currently held by Adair, Ralph S
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 W7JU's current licensee, walking backwards.
- BABCOCK, Charles LAZgranted 2026-06-16cancelled 2026-08-28
- BABCOCK, Charles LAZgranted 2025-12-12cancelled 2026-06-16
- BABCOCK, Charles LAZgranted 2018-10-03cancelled 2025-12-12
- Burlando, Aaron JWAgranted 2020-10-09
- BURLANDO, AARON JWAgranted 2020-09-18cancelled 2020-10-09
Successor callsigns
Callsigns held now by people who previously held W7JU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7JU, oldest first.
- WARNER, REYNOLD T AZ1996-09-09 → cancelled 1997-09-20
- Adair, Ralph S AZ2014-06-11 → cancelled 2026-08-01
- BABCOCK, Charles L AZ2026-08-28 active