Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF8RO callsign genealogy
Currently held by UNDERWOOD, JAMES R
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 KF8RO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KF8RO.
No current licensee on record previously held this callsign.