Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1HAR callsign genealogy
Currently held by Alsop, Michael E
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 N1HAR's current licensee, walking backwards.
- Alsop, Michael EVAgranted 2017-06-15cancelled 2017-12-05
Successor callsigns
Callsigns held now by people who previously held N1HAR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1HAR, oldest first.
- MASUDA, YUKIO CT1989-10-17 → cancelled 2001-10-18
- Alsop, Michael E VA2017-12-05 active