Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC2OJA callsign genealogy
Currently held by Grammer, Charles F
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 KC2OJA's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC2OJA.
- Grammer, Charles FNYgranted 2025-07-10