Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3DBM callsign genealogy
Currently held by Morrison, Robert H
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 N3DBM's current licensee, walking backwards.
- Morrison, Robert HPAgranted 2022-04-11cancelled 2022-04-30
Successor callsigns
Callsigns held now by people who previously held N3DBM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3DBM, oldest first.
- KUBERRY, FRANK C PA1989-01-17 → cancelled 2001-01-18
- Morrison, Robert H PA2022-04-30 active