Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF3N callsign genealogy
Currently held by Johnson, Michael T
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 AF3N's current licensee, walking backwards.
- JOHNSON, MICHAEL TPAgranted 2023-05-17cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held AF3N.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AF3N, oldest first.
- STEMMLER, WILLARD C PA1998-05-28 → cancelled 2010-05-29
- Larghi, Stephen CO2011-05-20 → cancelled 2023-05-23
- Johnson, Michael T PA2023-06-22 active