Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW5MM callsign genealogy
Currently held by Stone, Michael J
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 WW5MM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WW5MM.
No current licensee on record previously held this callsign.