Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8RHK callsign genealogy
Currently held by KOLLHOFF, ROBERT H
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 N8RHK's current licensee, walking backwards.
- KOLLHOFF, ROBERT HMIgranted 2008-08-12cancelled 2017-07-18
Successor callsigns
Callsigns held now by people who previously held N8RHK.
No current licensee on record previously held this callsign.