Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB8ST callsign genealogy
Currently held by MASTIE, JOHN 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 AB8ST's current licensee, walking backwards.
- MASTIE, JOHN MMIgranted 2003-01-21cancelled 2004-03-30
Successor callsigns
Callsigns held now by people who previously held AB8ST.
- MASTIE, JOHN MMIgranted 2018-10-22