Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB5TH callsign genealogy
Currently held by Huovinen, Todd 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 AB5TH's current licensee, walking backwards.
- Huovinen, Todd ELAgranted 2012-04-03cancelled 2016-08-20
Successor callsigns
Callsigns held now by people who previously held AB5TH.
- MILLS, PHILIP LTXgranted 2019-08-21
All historical holders
Every license row we've seen with the callsign AB5TH, oldest first.
- MILLS, PHILIP L TX1994-03-29 → cancelled 1999-11-18
- Huovinen, Todd E LA2026-06-23 active