Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9DDP callsign genealogy
Currently held by STANGE, WILLIAM J
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 W9DDP's current licensee, walking backwards.
- PAHNKE, DANIEL DILgranted 2020-11-16cancelled 2020-12-04
Successor callsigns
Callsigns held now by people who previously held W9DDP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9DDP, oldest first.
- STANGE, WILLIAM J AZ1992-01-21 → cancelled 2004-01-22
- PAHNKE, DANIEL D IL2020-12-04 active