Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SB callsign genealogy
Currently held by OTEY, WAYNE E
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 W9SB's current licensee, walking backwards.
- Hamilton, W DavidWIgranted 2026-01-29cancelled 2026-04-07
Successor callsigns
Callsigns held now by people who previously held W9SB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9SB, oldest first.
- OTEY, WAYNE E IL1992-01-21 → cancelled 2004-01-22
- Milbourn, Harry E IL2013-12-06 → cancelled 2026-03-07
- Hamilton, W David WI2026-04-07 active