Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4CMB callsign genealogy
Currently held by Bryant, Clayton M
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 W4CMB's current licensee, walking backwards.
- Bryant, Clayton MGAgranted 2011-08-10cancelled 2019-11-13
Successor callsigns
Callsigns held now by people who previously held W4CMB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4CMB, oldest first.
- RICH, WILLIAM G NC2006-03-25 → cancelled 2018-06-19
- Bryant, Clayton M GA2019-11-13 active