Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1TW callsign genealogy
Currently held by BORDEN IV, JEFFERSON
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 W1TW's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W1TW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1TW, oldest first.
- BORDEN IV, JEFFERSON RI1988-03-22 → cancelled 2000-03-23
- Agius, Joseph P MA2020-02-19 active