Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA7ZNH callsign genealogy
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 WA7ZNH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WA7ZNH.
- SPENGLER, JERRY LIDgranted 1998-10-27cancelled 2004-05-08
All historical holders
Every license row we've seen with the callsign WA7ZNH, oldest first.
- SPENGLER, JERRY L ID2004-05-08 → cancelled 2016-05-10
- —— → cancelled 1998-10-27