Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5IMJ callsign genealogy
Currently held by HARBOUR, RANDALL 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 K5IMJ's current licensee, walking backwards.
- HARBOUR, RANDALL ETXgranted 2004-06-08cancelled 2004-08-06
Successor callsigns
Callsigns held now by people who previously held K5IMJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5IMJ, oldest first.
- HARBOUR, FREDERICK R TX1999-07-29 → cancelled 2002-10-10
- HARBOUR, RANDALL E TX2025-07-15 active