Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9MMS callsign genealogy
Currently held by BUHR, VERNA M
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 N9MMS's current licensee, walking backwards.
- Spencer, Michael MWIgranted 2009-11-24cancelled 2009-12-12
Successor callsigns
Callsigns held now by people who previously held N9MMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9MMS, oldest first.
- BUHR, VERNA M WI1994-07-16 → cancelled 2003-12-04
- Spencer, Michael M WI2019-12-03 active