Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB7ST callsign genealogy
Currently held by FOLLETT, ROBERT C
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 AB7ST's current licensee, walking backwards.
- Bjorkegren, Christer EWAgranted 2016-03-15cancelled 2016-05-17
Successor callsigns
Callsigns held now by people who previously held AB7ST.
- FOLLETT, ROBERT CUTgranted 2017-08-22
All historical holders
Every license row we've seen with the callsign AB7ST, oldest first.
- FOLLETT, ROBERT C UT2002-01-29 → cancelled 2007-11-16
- Bjorkegren, Christer E WA2016-05-17 active