Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9B callsign genealogy
Currently held by LACKAMP, THOMAS 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 AB9B's current licensee, walking backwards.
- Sims, Robert FILgranted 2011-06-23cancelled 2012-10-19
Successor callsigns
Callsigns held now by people who previously held AB9B.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB9B, oldest first.
- LACKAMP, THOMAS J WA2000-09-07 → cancelled 2012-09-08
- Sims, Robert F IL2022-08-19 active