Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3TJM callsign genealogy
Currently held by WEYHENMEYER, THADDEUS B
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 W3TJM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W3TJM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3TJM, oldest first.
- WEYHENMEYER, THADDEUS B PA2000-02-11 → cancelled 2005-03-08
- MESLER, THOMAS J PA2019-12-21 active