Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4LB callsign genealogy
Currently held by HENDRICKS, KATHLEEN M
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 AC4LB's current licensee, walking backwards.
- KO4JRno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AC4LB.
- HENDRICKS, KATHLEEN MNCgranted 2025-12-09