Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5MBS callsign genealogy
Currently held by Stone, Matthew R
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 KD5MBS's current licensee, walking backwards.
- Stone, Matthew RTXgranted 2000-07-28cancelled 2000-10-26
Successor callsigns
Callsigns held now by people who previously held KD5MBS.
- Stone, Matthew RKSgranted 2020-10-09cancelled 2026-06-13