Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TBN callsign genealogy
Currently held by CONSTANTINO, ROBERT
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 W4TBN's current licensee, walking backwards.
- Nash, Thomas BGAgranted 2014-02-27cancelled 2014-09-16
Successor callsigns
Callsigns held now by people who previously held W4TBN.
- CONSTANTINO, ROBERTFLgranted 2022-03-30cancelled 2022-06-24
All historical holders
Every license row we've seen with the callsign W4TBN, oldest first.
- CONSTANTINO, ROBERT FL2007-07-25 → cancelled 2012-04-24
- Nash, Thomas B GA2024-09-14 active