Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4TIA callsign genealogy
Currently held by HEVENER, JOHN F
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 W4TIA's current licensee, walking backwards.
- Mason, Robert FSCgranted 2009-10-05cancelled 2018-10-12
Successor callsigns
Callsigns held now by people who previously held W4TIA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4TIA, oldest first.
- HEVENER, JOHN F FL2004-03-23 → cancelled 2016-04-20
- Mason, Robert F SC2018-10-12 active