Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4TZK callsign genealogy
Currently held by AIKEN, MICHAEL 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 KN4TZK's current licensee, walking backwards.
- AIKEN, MICHAEL LGAgranted 2010-08-20cancelled 2019-04-17
Successor callsigns
Callsigns held now by people who previously held KN4TZK.
No current licensee on record previously held this callsign.