Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N8CDM callsign genealogy
Currently held by Grandmason, Jeff A
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 N8CDM's current licensee, walking backwards.
- Grandmason, Jeff AMIgranted 2016-02-24cancelled 2017-12-16
Successor callsigns
Callsigns held now by people who previously held N8CDM.
- Grandmason, Jeff AMIgranted 2017-12-16