Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9NPA callsign genealogy
Currently held by Janke, Daniel K
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 W9NPA's current licensee, walking backwards.
- Janke, Daniel KWIgranted 2019-07-29cancelled 2020-06-13
Successor callsigns
Callsigns held now by people who previously held W9NPA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9NPA, oldest first.
- RING SR, WALTER R IN1999-01-14 → cancelled 2011-01-15
- Janke, Daniel K WI2020-06-13 active