Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1EMM callsign genealogy
Currently held by WHEATON, MATTHEW D
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 W1EMM's current licensee, walking backwards.
- Walker, John BVAgranted 2018-07-20cancelled 2024-07-06
Successor callsigns
Callsigns held now by people who previously held W1EMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1EMM, oldest first.
- WHEATON, MATTHEW D MO2009-01-30 → cancelled 2021-02-02
- Walker, John B VA2024-07-06 active