Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8MPY callsign genealogy
Currently held by Rosin, Steven A
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 W8MPY's current licensee, walking backwards.
- Rosin, Steven AMIgranted 2025-12-05cancelled 2026-08-25
Successor callsigns
Callsigns held now by people who previously held W8MPY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8MPY, oldest first.
- 1936 VINTAGE AMATEUR RADIO CLUB AZ2012-12-18 → cancelled 2024-12-19
- Rosin, Steven A MI2026-08-25 active