Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4AGO callsign genealogy
Currently held by SMITH, JOHN H
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 K4AGO's current licensee, walking backwards.
- SMITH, JOHN HNCgranted 2014-03-27cancelled 2016-03-25
Successor callsigns
Callsigns held now by people who previously held K4AGO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4AGO, oldest first.
- BOST, HOLLAND NC2010-10-26 → cancelled 2015-01-08
- SMITH, JOHN H NC2016-03-25 active