Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5RKO callsign genealogy
Currently held by Arnold, Hal M
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 W5RKO's current licensee, walking backwards.
- Arnold, Hal MMSgranted 2011-06-16cancelled 2011-07-23
Successor callsigns
Callsigns held now by people who previously held W5RKO.
No current licensee on record previously held this callsign.