Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA4HZH callsign genealogy
Currently held by RIDDLE, HOBERT C
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 KA4HZH's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KA4HZH.
- RIDDLE, HOBERT CTNgranted 1999-03-31cancelled 2000-07-11