Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4LMB callsign genealogy
Currently held by FISCHER, MARGARET H
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 N4LMB's current licensee, walking backwards.
- BURGESS, LARRY MFLgranted 2021-07-27cancelled 2026-07-07
Successor callsigns
Callsigns held now by people who previously held N4LMB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4LMB, oldest first.
- FISCHER, MARGARET H SC2013-04-23 → cancelled 2025-04-24
- BURGESS, LARRY M FL2026-07-07 active