Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9XD callsign genealogy
Currently held by SCHULZ, CHRISTOPHER D
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 AB9XD's current licensee, walking backwards.
- SCHULZ, CHRISTOPHER DILgranted 2008-10-02cancelled 2010-08-10
Successor callsigns
Callsigns held now by people who previously held AB9XD.
- SCHULZ, CHRISTOPHER DILgranted 2020-08-18