Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N8UPR callsign genealogy
Currently held by KOBYLACK, EDWARD F
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 N8UPR's current licensee, walking backwards.
- Petersen, Robert JMIgranted 2021-04-14cancelled 2021-07-24
Successor callsigns
Callsigns held now by people who previously held N8UPR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8UPR, oldest first.
- KOBYLACK, EDWARD F OH1992-06-23 → cancelled 2004-06-24
- Petersen, Robert J MI2021-07-24 active