Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4SM callsign genealogy
Currently held by MILLER, PAUL S
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 KD4SM's current licensee, walking backwards.
- MILLER, PAUL SNCgranted 2006-05-31cancelled 2008-04-15
Successor callsigns
Callsigns held now by people who previously held KD4SM.
- WHEELER, RICHARD BMOgranted 2024-01-11
All historical holders
Every license row we've seen with the callsign KD4SM, oldest first.
- WHEELER, RICHARD B AZ1996-07-29 → cancelled 2004-01-16
- MILLER, PAUL S NC2018-01-23 active