Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4MRD callsign genealogy
Currently held by ALBRETS, OLIVE O
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 N4MRD's current licensee, walking backwards.
- Drahzal, Matthew RFLgranted 2020-11-20cancelled 2020-12-18
Successor callsigns
Callsigns held now by people who previously held N4MRD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4MRD, oldest first.
- ALBRETS, OLIVE O AL1992-10-27 → cancelled 2004-10-28
- Drahzal, Matthew R FL2020-12-18 active