Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB5TDU callsign genealogy
Currently held by LAUER, ANDY R
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 KB5TDU's current licensee, walking backwards.
- Lauer, AndyTXgranted 2020-10-23cancelled 2020-11-17
Successor callsigns
Callsigns held now by people who previously held KB5TDU.
- Lauer, AndyTXgranted 2024-08-06
All historical holders
Every license row we've seen with the callsign KB5TDU, oldest first.
- LAUER, ANDY R TX1992-06-09 → cancelled 2004-06-11
- Lauer, Andy TX2020-11-17 → cancelled 2024-08-06