Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4PPM callsign genealogy
Currently held by Ciardi, Michael A
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 W4PPM's current licensee, walking backwards.
- Ciardi, Michael AFLgranted 2017-03-01cancelled 2018-09-08
Successor callsigns
Callsigns held now by people who previously held W4PPM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4PPM, oldest first.
- RALSTON, ADOLPH H KY1998-01-06 → cancelled 2010-01-07
- Ciardi, Michael A MD2018-09-08 active