Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC5JHP callsign genealogy
Currently held by PATTERSON, STEPHEN G
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 KC5JHP's current licensee, walking backwards.
- Plassmann, Joseph HAZgranted 2022-04-12cancelled 2022-05-03
Successor callsigns
Callsigns held now by people who previously held KC5JHP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC5JHP, oldest first.
- PATTERSON, STEPHEN G TX2004-07-13 → cancelled 2016-09-01
- Plassmann, Joseph H AZ2022-05-03 active