Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KE4ACS callsign genealogy
Currently held by MATHEWS JR, RONALD 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 KE4ACS's current licensee, walking backwards.
- KJ4DHPcancelledAuxillary Communications ServiceTNgranted 2008-04-15cancelled 2008-08-05
Successor callsigns
Callsigns held now by people who previously held KE4ACS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE4ACS, oldest first.
- MATHEWS JR, RONALD E FL1993-04-13 → cancelled 2005-04-14
- Auxillary Communications Service TN2018-05-18 active