Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7REN callsign genealogy
Currently held by Nasburg, Dr. Robert E
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 K7REN's current licensee, walking backwards.
- MOHAN SCHULZ, KAREN PCAgranted 2023-05-16cancelled 2024-05-21
Successor callsigns
Callsigns held now by people who previously held K7REN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7REN, oldest first.
- Nasburg, Dr. Robert E CA2011-04-02 → cancelled 2023-05-05
- MOHAN SCHULZ, KAREN P CA2024-05-21 active