Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4ROB callsign genealogy
Currently held by PHELPS, FRED A
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 N4ROB's current licensee, walking backwards.
- STRANDBERG, ROBERT LFLgranted 1995-06-06cancelled 2000-04-11
Successor callsigns
Callsigns held now by people who previously held N4ROB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ROB, oldest first.
- PHELPS, FRED A FL1988-03-22 → cancelled 2000-03-23
- STRANDBERG, ROBERT L FL2020-02-18 active