Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4BOI callsign genealogy
Currently held by GREER, HAROLD 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 KA4BOI's current licensee, walking backwards.
- TOLBERT III, ALZIE LGAgranted 2018-04-12cancelled 2018-05-08
Successor callsigns
Callsigns held now by people who previously held KA4BOI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA4BOI, oldest first.
- GREER, HAROLD E AL2004-10-13 → cancelled 2016-10-19
- TOLBERT III, ALZIE L GA2018-05-08 active