Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB4F callsign genealogy
Currently held by Groves, Robert E
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 NB4F's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NB4F.
- KEY, GARY ECAgranted 2006-11-07cancelled 2018-11-08
All historical holders
Every license row we've seen with the callsign NB4F, oldest first.
- KEY, GARY E CA2003-09-23 → cancelled 2006-11-07
- Groves, Robert E GA2018-09-29 active