Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7ISS callsign genealogy
Currently held by KAFKA, GEORGE 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 W7ISS's current licensee, walking backwards.
- Chaffins, Mark LCOgranted 2019-08-27cancelled 2020-02-11
Successor callsigns
Callsigns held now by people who previously held W7ISS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7ISS, oldest first.
- KAFKA, GEORGE J AZ1994-05-31 → cancelled 2006-06-01
- Chaffins, Mark L CO2020-02-11 active