Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RFW callsign genealogy
Currently held by Hennessy, Gregg 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 K4RFW's current licensee, walking backwards.
- Hennessy, Gregg CNJgranted 2019-05-24cancelled 2020-11-14
Successor callsigns
Callsigns held now by people who previously held K4RFW.
No current licensee on record previously held this callsign.