Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4WXH callsign genealogy
Currently held by Becker, William 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 KF4WXH's current licensee, walking backwards.
- Becker, William CTNgranted 2013-08-16cancelled 2015-12-11
Successor callsigns
Callsigns held now by people who previously held KF4WXH.
- Becker, William CTNgranted 2026-01-14
All historical holders
Every license row we've seen with the callsign KF4WXH, oldest first.
- KAKALEC, JAMES T NC1998-04-13 → cancelled 2010-04-14
- Becker, William C TN2015-12-11 → cancelled 2016-02-27