Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SLB callsign genealogy
Currently held by SAGAN, PETER
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 W9SLB's current licensee, walking backwards.
- Baublitz, Steven LFLgranted 2007-04-05cancelled 2007-04-28
Successor callsigns
Callsigns held now by people who previously held W9SLB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9SLB, oldest first.
- SAGAN, PETER IL1991-02-26 → cancelled 2003-02-27
- baublitz, steve L FL2017-03-17 active