Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KU4FB callsign genealogy
Currently held by SERING, ROBERT L
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 KU4FB's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KU4FB.
- SERING, ROBERT LNCgranted 1998-12-09cancelled 2005-04-24