Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4OPS callsign genealogy
Currently held by REBER, DONALD 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 N4OPS's current licensee, walking backwards.
- REBER, DON JTNgranted 2009-03-31cancelled 2009-04-21
Successor callsigns
Callsigns held now by people who previously held N4OPS.
No current licensee on record previously held this callsign.