Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NF1M callsign genealogy
Currently held by Lau, Michael
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 NF1M's current licensee, walking backwards.
- Lau, MichaelCTgranted 2022-04-15cancelled 2022-07-15
Successor callsigns
Callsigns held now by people who previously held NF1M.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NF1M, oldest first.
- CAMPBELL SR, ROBERT C NH1998-02-09 → cancelled 2010-02-10
- Mizuno, Yasuhisa CA2010-06-02 → cancelled 2022-06-03
- Lau, Michael CT2022-07-15 active