Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW4NFL callsign genealogy
Currently held by Riestenberg, Robert J
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 KW4NFL's current licensee, walking backwards.
- Riestenberg, Robert JFLgranted 2017-06-16cancelled 2017-07-04
Successor callsigns
Callsigns held now by people who previously held KW4NFL.
- RIESTENBERG, ROBERT JFLgranted 2017-07-25