Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK7ZR callsign genealogy
Currently held by JOOS, STEVEN 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 KK7ZR's current licensee, walking backwards.
- JOOS, STEVEN JWAgranted 2018-02-13cancelled 2020-06-24
Successor callsigns
Callsigns held now by people who previously held KK7ZR.
- JOOS, STEVEN JWAgranted 2021-05-21cancelled 2022-02-18