Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WT1J callsign genealogy
Currently held by KENNISTON, MALCOLM N
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 WT1J's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WT1J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WT1J, oldest first.
- KENNISTON, MALCOLM N ME2001-04-04 → cancelled 2013-07-03
- Maunder, Mark D WA2023-05-04 active