Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4JB callsign genealogy
Currently held by Berrios Gonzalez, Jose C
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 NP4JB's current licensee, walking backwards.
- Berrios Gonzalez, Jose CPRgranted 2015-12-04cancelled 2016-08-09
Successor callsigns
Callsigns held now by people who previously held NP4JB.
- Berrios Gonzalez, Jose CPRgranted 2015-12-04cancelled 2016-08-09
All historical holders
Every license row we've seen with the callsign NP4JB, oldest first.
- Berrios Gonzalez, Jose C PR2014-01-17 → cancelled 2015-12-04
- Berrios Gonzalez, Jose C PR2026-06-02 active