Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3RPC callsign genealogy
Currently held by Smurlo, Robert 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 KB3RPC's current licensee, walking backwards.
- CATHER, RYAN PMDgranted 2022-10-21cancelled 2022-11-08
Successor callsigns
Callsigns held now by people who previously held KB3RPC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB3RPC, oldest first.
- Smurlo, Robert J PA2008-08-19 → cancelled 2020-08-20
- CATHER, RYAN P MD2022-11-08 active