Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5KKW callsign genealogy
Currently held by WOLFF, WARREN A
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 W5KKW's current licensee, walking backwards.
- Calvin, Tim MTXgranted 2019-04-26cancelled 2019-05-17
Successor callsigns
Callsigns held now by people who previously held W5KKW.
- WOLFF, WARREN AAZgranted 2026-06-24
All historical holders
Every license row we've seen with the callsign W5KKW, oldest first.
- WOLFF, WARREN A NM1996-06-18 → cancelled 2006-03-21
- Calvin, Tim M TX2019-05-17 active