Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1OB callsign genealogy
Currently held by Finster, Robert W
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 W1OB's current licensee, walking backwards.
- Finster, Robert WILgranted 2013-10-23cancelled 2016-05-27
Successor callsigns
Callsigns held now by people who previously held W1OB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1OB, oldest first.
- DOVER, JAMES G FL2007-03-23 → cancelled 2014-05-06
- Finster, Robert W IL2026-04-15 active