Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4PS callsign genealogy
Currently held by Johnson, Philips B
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 AB4PS's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB4PS.
- MOHLER JR, FRANK AGAgranted 2019-08-13
All historical holders
Every license row we've seen with the callsign AB4PS, oldest first.
- Johnson, Philips B SC2023-11-28 active
- —— → cancelled 1999-08-02