Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4WMB callsign genealogy
Currently held by Branch, William 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 KK4WMB's current licensee, walking backwards.
- Branch, William MFLgranted 2013-09-18cancelled 2020-04-14
Successor callsigns
Callsigns held now by people who previously held KK4WMB.
- Miller, John FTNgranted 2024-08-13
All historical holders
Every license row we've seen with the callsign KK4WMB, oldest first.
- Miller, John F TN2014-01-15 → cancelled 2014-07-08
- Branch, William M FL2020-04-14 active