Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA1BO callsign genealogy
Currently held by Obenauf, 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 WA1BO's current licensee, walking backwards.
- OBENAUF, ROBERT WRIgranted 1995-10-31cancelled 2002-05-28
Successor callsigns
Callsigns held now by people who previously held WA1BO.
- Obenauf, Robert WUTgranted 2018-11-06