Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2JPC callsign genealogy
Currently held by Costable, Joseph
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 K2JPC's current licensee, walking backwards.
- Costable, JosephNYgranted 2023-11-04cancelled 2023-11-25
Successor callsigns
Callsigns held now by people who previously held K2JPC.
No current licensee on record previously held this callsign.