Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD9HPI callsign genealogy
Currently held by LEAVER, ABE
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 WD9HPI's current licensee, walking backwards.
- Klapman, Matthew HILgranted 2018-05-10cancelled 2018-05-30
Successor callsigns
Callsigns held now by people who previously held WD9HPI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD9HPI, oldest first.
- LEAVER, ABE IL1988-04-05 → cancelled 2000-04-06
- Klapman, Matthew H CA2018-05-30 active