Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6KNK callsign genealogy
Currently held by HAFSTROM, JOHN R
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 W6KNK's current licensee, walking backwards.
- Reeves, Kenneth RCAgranted 2018-02-05cancelled 2018-04-03
Successor callsigns
Callsigns held now by people who previously held W6KNK.
- Reeves, Kenneth RTNgranted 2018-04-24cancelled 2023-10-13
All historical holders
Every license row we've seen with the callsign W6KNK, oldest first.
- HAFSTROM, JOHN R CA2003-10-23 → cancelled 2016-01-19
- Reeves, Kenneth R CA2018-04-03 → cancelled 2018-04-24