Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K2UFH callsign genealogy
Currently held by ZIMMERMANN, WILLIAM G
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 K2UFH's current licensee, walking backwards.
- ZIMMERMANN, JOHN ANJgranted 2002-11-13cancelled 2006-08-22
Successor callsigns
Callsigns held now by people who previously held K2UFH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2UFH, oldest first.
- ZIMMERMANN, WILLIAM G NJ1997-09-03 → cancelled 2005-09-16
- ZIMMERMANN, JOHN A NJ2026-06-25 active