Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI4AD callsign genealogy
Currently held by DULLES RADIO ARRL CLUB
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 KI4AD's current licensee, walking backwards.
- KO4GCMcancelledDULLES RADIO ARRL CLUBVAgranted 2020-08-10cancelled 2020-09-01
Successor callsigns
Callsigns held now by people who previously held KI4AD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KI4AD, oldest first.
- HOSMER, HUGH W FL2002-12-30 → cancelled 2015-03-31
- DULLES RADIO ARRL CLUB VA2020-09-01 active