Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2CJM callsign genealogy
Currently held by McDonald, Carole 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 K2CJM's current licensee, walking backwards.
- Martello II, Cosimo JLAgranted 2025-01-22cancelled 2025-02-22
Successor callsigns
Callsigns held now by people who previously held K2CJM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2CJM, oldest first.
- McDonald, Carole J CA2012-11-01 → cancelled 2025-01-01
- Martello II, Cosimo LA2025-02-22 active