Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0AP callsign genealogy
Currently held by Walkup, David W
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 AC0AP's current licensee, walking backwards.
- Walkup, David WMOgranted 2026-05-02
Successor callsigns
Callsigns held now by people who previously held AC0AP.
- Walkup, David WMOgranted 2026-05-02