Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6KUM callsign genealogy
Currently held by ROBINS, FRANK W
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 K6KUM's current licensee, walking backwards.
- KUMAR, SUMEET SCAgranted 2022-03-08cancelled 2025-09-03
Successor callsigns
Callsigns held now by people who previously held K6KUM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6KUM, oldest first.
- ROBINS, FRANK W CA1998-03-16 → cancelled 2006-01-10
- KUMAR, SUMEET S CA2025-09-03 active