Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1RIS callsign genealogy
Currently held by SHARKEY, RICHARD L
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 K1RIS's current licensee, walking backwards.
- Mercer, Kristopher EAZgranted 2025-12-17cancelled 2026-01-06
Successor callsigns
Callsigns held now by people who previously held K1RIS.
- MERCER, KRISTOPHER EAZgranted 2026-03-27
All historical holders
Every license row we've seen with the callsign K1RIS, oldest first.
- SHARKEY, RICHARD L NH2006-08-15 → cancelled 2018-11-06
- MERCER, KRISTOPHER E AZ2026-01-06 → cancelled 2026-03-27