Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W9MSY callsign genealogy
Currently held by Kaiser, Nicholas F
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 W9MSY's current licensee, walking backwards.
- Kaiser, Nicholas FWAgranted 2012-11-01cancelled 2013-02-20
Successor callsigns
Callsigns held now by people who previously held W9MSY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9MSY, oldest first.
- FOOTE, ROBERT L WA2003-03-06 → cancelled 2011-03-03
- Kaiser, Nicholas F WA2013-02-20 → cancelled 2025-02-21