Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4RMA callsign genealogy
Currently held by SCHAFER, FREDERICK 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 N4RMA's current licensee, walking backwards.
- SCHAFER, FREDERICK RSCgranted 2013-10-17cancelled 2013-12-24
Successor callsigns
Callsigns held now by people who previously held N4RMA.
- SCHAFER, FREDERICK RSCgranted 2026-01-21
All historical holders
Every license row we've seen with the callsign N4RMA, oldest first.
- GLEAVES SR, DONALD G AL1998-01-28 → cancelled 2010-01-29
- SCHAFER, FREDERICK R SC2023-11-15 → cancelled 2026-01-21