Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4SPM callsign genealogy
Currently held by LU ALLEN, ERIC T
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 N4SPM's current licensee, walking backwards.
- Morin, Sean PFLgranted 2023-06-07cancelled 2025-06-21
Successor callsigns
Callsigns held now by people who previously held N4SPM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SPM, oldest first.
- LU ALLEN, ERIC T FL1989-11-14 → cancelled 2002-03-07
- Morin, Sean P FL2025-06-21 active