Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9IHJ callsign genealogy
Currently held by Isaacs, Ronald L
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 K9IHJ's current licensee, walking backwards.
- Isaacs, Ronald LLAgranted 2003-11-13cancelled 2004-01-30
Successor callsigns
Callsigns held now by people who previously held K9IHJ.
No current licensee on record previously held this callsign.