Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4GRH callsign genealogy
Currently held by Palminteri, James P
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 KO4GRH's current licensee, walking backwards.
- Palminteri, James PFLgranted 2015-05-07cancelled 2020-08-27
Successor callsigns
Callsigns held now by people who previously held KO4GRH.
- Palminteri, James PFLgranted 2020-09-15