Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TMK callsign genealogy
Currently held by King, Mitchell E
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 W4TMK's current licensee, walking backwards.
- King, Mitchell ETNgranted 2016-11-16cancelled 2017-06-20
Successor callsigns
Callsigns held now by people who previously held W4TMK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TMK, oldest first.
- PINSON, ROSS A GA1997-05-28 → cancelled 2009-05-29
- King, Mitchell E TN2017-06-20 active