Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3MSP callsign genealogy
Currently held by LEESE SR, BARRY 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 N3MSP's current licensee, walking backwards.
- LEESE SR, BARRY EMDgranted 2009-02-09cancelled 2009-02-27
Successor callsigns
Callsigns held now by people who previously held N3MSP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3MSP, oldest first.
- THOMAS, HAROLD C PA1994-12-30 → cancelled 2006-05-18
- LEESE SR, BARRY E MD2019-01-30 active