Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AC9SK callsign genealogy
Currently held by WALGENBACH, NEIL E
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 AC9SK's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AC9SK.
- WALGENBACH, NEIL EILgranted 2019-12-13