Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0OFO callsign genealogy
Currently held by Arban, William J
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 W0OFO's current licensee, walking backwards.
- Arban, William JGAgranted 2016-01-08cancelled 2018-10-23
Successor callsigns
Callsigns held now by people who previously held W0OFO.
- PLUMLEE, DAVID LMOgranted 2018-03-31
All historical holders
Every license row we've seen with the callsign W0OFO, oldest first.
- PLUMLEE, DAVID L MO2008-01-12 → cancelled 2008-05-06
- Arban, William J ND2018-10-23 active