Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ACT callsign genealogy
Currently held by SINGLETON JR, BILLY J
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 K4ACT's current licensee, walking backwards.
- SINGLETON JR, BILLY JTNgranted 1995-10-05cancelled 2001-05-15
Successor callsigns
Callsigns held now by people who previously held K4ACT.
No current licensee on record previously held this callsign.