Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ZDM callsign genealogy
Currently held by Erickson, Karen L
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 K4ZDM's current licensee, walking backwards.
- Erickson, Karen LFLgranted 2017-10-17cancelled 2017-12-27
Successor callsigns
Callsigns held now by people who previously held K4ZDM.
No current licensee on record previously held this callsign.