Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NC4IS callsign genealogy
Currently held by MERRITT, JOHN T
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 NC4IS's current licensee, walking backwards.
- MERRITT, JOHN TSCgranted 2024-03-01cancelled 2024-04-16
Successor callsigns
Callsigns held now by people who previously held NC4IS.
- MERRITT, JOHN TSCgranted 2024-03-01cancelled 2024-04-16
All historical holders
Every license row we've seen with the callsign NC4IS, oldest first.
- MERRITT, JOHN T SC2022-03-12 → cancelled 2024-03-01
- MERRITT, JOHN T SC2024-04-16 active