Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1JAG callsign genealogy
Currently held by GUERRERO, JOSE A
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 W1JAG's current licensee, walking backwards.
- GUERRERO, JOSE ATXgranted 2012-05-09cancelled 2014-05-31
Successor callsigns
Callsigns held now by people who previously held W1JAG.
- Guzofski, Jay ANHgranted 2012-03-30cancelled 2018-02-27
All historical holders
Every license row we've seen with the callsign W1JAG, oldest first.
- Guzofski, Jay A NH2003-12-16 → cancelled 2012-03-30
- GUERRERO, JOSE A TX2014-05-31 → cancelled 2026-06-02