Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6TMM callsign genealogy
Currently held by SANCHEZ, KEEGAN C
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 W6TMM's current licensee, walking backwards.
- SANCHEZ, KEEGAN CCAgranted 2020-08-17cancelled 2020-09-12
Successor callsigns
Callsigns held now by people who previously held W6TMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6TMM, oldest first.
- CHEATHAM, ROBERT T CA2007-01-11 → cancelled 2019-03-19
- SANCHEZ, KEEGAN C CA2020-09-12 active