Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9FMF callsign genealogy
Currently held by McGrew, Randall R
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 N9FMF's current licensee, walking backwards.
- McGrew, Randall RINgranted 2022-04-11cancelled 2022-04-29
Successor callsigns
Callsigns held now by people who previously held N9FMF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9FMF, oldest first.
- ANDREW, JOHN W IN1996-02-21 → cancelled 2008-02-22
- McGrew, Randall R IN2022-04-29 active