Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1PKX callsign genealogy
Currently held by Baillio, Thomas P
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 W1PKX's current licensee, walking backwards.
- Baillio, Thomas PMAgranted 2006-01-06cancelled 2006-03-07
Successor callsigns
Callsigns held now by people who previously held W1PKX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1PKX, oldest first.
- BAILLIO, ECKERT M MA1996-11-15 → cancelled 2005-10-02
- Baillio, Thomas P MA2025-12-09 active