Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1WWW callsign genealogy
Currently held by FOSTER, KURT
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 K1WWW's current licensee, walking backwards.
- FOSTER, KURTMNgranted 2024-02-07cancelled 2024-03-01
Successor callsigns
Callsigns held now by people who previously held K1WWW.
- FOSTER, KURTMNgranted 2026-02-03
All historical holders
Every license row we've seen with the callsign K1WWW, oldest first.
- WATSON, JAMES F W NC2011-03-05 → cancelled 2023-04-18
- FOSTER, KURT MN2024-03-01 → cancelled 2026-02-03