Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB8LO callsign genealogy
Currently held by Martens, Randall D
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 AB8LO's current licensee, walking backwards.
- Martens, Randall DMIgranted 1997-01-24cancelled 2001-10-17
Successor callsigns
Callsigns held now by people who previously held AB8LO.
- Martens, Randall DMIgranted 2017-09-01