Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WW1FK callsign genealogy
Currently held by Klein, Franz E
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 WW1FK's current licensee, walking backwards.
- Klein, Franz ETXgranted 2012-04-04cancelled 2012-07-17
Successor callsigns
Callsigns held now by people who previously held WW1FK.
No current licensee on record previously held this callsign.