Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3TJ callsign genealogy
Currently held by Harper, Alan
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 N3TJ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N3TJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3TJ, oldest first.
- Johnson, Carl T FL2010-04-02 → cancelled 2022-06-24
- Harper, Alan CT2022-08-30 active