Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1RSU callsign genealogy
Currently held by Pizzoferrato, Richard M
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 K1RSU's current licensee, walking backwards.
- Pizzoferrato, Richard MCTgranted 2007-08-16cancelled 2015-04-14
Successor callsigns
Callsigns held now by people who previously held K1RSU.
No current licensee on record previously held this callsign.