Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK6ZLR callsign genealogy
Currently held by Mack, William J
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 KK6ZLR'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 KK6ZLR.
- Mack, William JCAgranted 2016-01-19cancelled 2016-11-01