Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9TC callsign genealogy
Currently held by Roberson, Donald H
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 AC9TC's current licensee, walking backwards.
- Roberson, Donald HWIgranted 2018-04-17cancelled 2018-05-29
Successor callsigns
Callsigns held now by people who previously held AC9TC.
- Roberson, Donald HWIgranted 2018-07-06cancelled 2018-07-31