Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3KKO callsign genealogy
Currently held by ENGLE JR, WILLIAM 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 W3KKO's current licensee, walking backwards.
- Engle, Clifford JMDgranted 2016-02-26cancelled 2016-03-29
Successor callsigns
Callsigns held now by people who previously held W3KKO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3KKO, oldest first.
- ENGLE JR, WILLIAM J PA2004-09-24 → cancelled 2014-04-16
- ENGLE, CLIFFORD J MD2026-01-22 active