Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8TAG callsign genealogy
Currently held by FITZGERALD, 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 K8TAG's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K8TAG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8TAG, oldest first.
- FITZGERALD, JOHN M MI1993-04-06 → cancelled 2005-04-07
- Grieger, Thomas A WV2019-11-02 active