Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7AFK callsign genealogy
Currently held by Walser, Donald 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 K7AFK's current licensee, walking backwards.
- Thomas, Nicholas DWAgranted 2019-09-24cancelled 2019-10-12
Successor callsigns
Callsigns held now by people who previously held K7AFK.
- Walser, Donald JAZgranted 2017-09-09cancelled 2018-07-24
All historical holders
Every license row we've seen with the callsign K7AFK, oldest first.
- Walser, Donald J AZ2013-12-27 → cancelled 2017-09-09
- Thomas, Nicholas D WA2019-10-12 active