Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ROR callsign genealogy
Currently held by RAINER, ROBERT O
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 W4ROR's current licensee, walking backwards.
- RAINER, ROBERT OSCgranted 2020-01-10cancelled 2020-01-31
Successor callsigns
Callsigns held now by people who previously held W4ROR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ROR, oldest first.
- WARLICK, WILLIAM C NC1995-05-22 → cancelled 2007-05-23
- RAINER, ROBERT O SC2020-01-31 active