Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RKX callsign genealogy
Currently held by Riggan, Christopher J
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 K4RKX's current licensee, walking backwards.
- Riggan, Christopher JNCgranted 2022-09-13cancelled 2023-01-06
Successor callsigns
Callsigns held now by people who previously held K4RKX.
No current licensee on record previously held this callsign.