Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7CHF callsign genealogy
Currently held by Zangle, Alan T
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 W7CHF's current licensee, walking backwards.
- ZANGLE, ALAN TAZgranted 2011-03-28cancelled 2018-09-15
Successor callsigns
Callsigns held now by people who previously held W7CHF.
No current licensee on record previously held this callsign.