Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1TJW callsign genealogy
Currently held by Williams, Timothy 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 W1TJW's current licensee, walking backwards.
- Williams, Timothy JCAgranted 2019-04-26cancelled 2019-05-17
Successor callsigns
Callsigns held now by people who previously held W1TJW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1TJW, oldest first.
- MAC DOUGALL, COLIN B MA2004-08-09 → cancelled 2016-11-01
- Williams, Timothy J AK2019-05-17 active