Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AJ4TH callsign genealogy
Currently held by SMITH, CHARLES S
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 AJ4TH's current licensee, walking backwards.
- SMITH, CHARLES SSCgranted 2009-04-21cancelled 2009-10-15
Successor callsigns
Callsigns held now by people who previously held AJ4TH.
No current licensee on record previously held this callsign.