Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3RF callsign genealogy
Currently held by FINN, ROBERT 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 W3RF's current licensee, walking backwards.
- PEARSON, MARK ADEgranted 2017-11-08cancelled 2018-12-21
Successor callsigns
Callsigns held now by people who previously held W3RF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3RF, oldest first.
- FINN, ROBERT R AZ2006-12-02 → cancelled 2018-12-04
- PEARSON, MARK A DE2018-12-21 active