Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1CFM callsign genealogy
Currently held by SCHWAB, HENRY 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 N1CFM's current licensee, walking backwards.
- Maguire III, Charles FMEgranted 2021-02-10cancelled 2021-03-30
Successor callsigns
Callsigns held now by people who previously held N1CFM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1CFM, oldest first.
- SCHWAB, HENRY J CT1999-06-30 → cancelled 2011-07-01
- Maguire III, Charles F ME2021-03-30 active