Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9HAP callsign genealogy
Currently held by Ritter, Jarrod 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 W9HAP's current licensee, walking backwards.
- Ritter, Jarrod JILgranted 2019-04-04cancelled 2019-05-25
Successor callsigns
Callsigns held now by people who previously held W9HAP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9HAP, oldest first.
- MENDENHALL, DONALD I AZ2004-02-19 → cancelled 2016-04-06
- Ritter, Jarrod J IL2019-05-25 active