Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6SPO callsign genealogy
Currently held by STEGER, ALAN M
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 W6SPO's current licensee, walking backwards.
- POMMERENK, STEFANCAgranted 2020-05-18cancelled 2020-08-25
Successor callsigns
Callsigns held now by people who previously held W6SPO.
- POMMERENK, STEFANHIgranted 2023-04-08
All historical holders
Every license row we've seen with the callsign W6SPO, oldest first.
- STEGER, ALAN M CA1997-11-14 → cancelled 2009-11-17
- POMMERENK, STEFAN HI2020-08-25 → cancelled 2023-04-08