Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4CRG callsign genealogy
Currently held by Caribbean Radio Emergency Group
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 KP4CRG's current licensee, walking backwards.
- WP4RJGcancelledCaribbean Radio Emergency GroupPRgranted 2019-12-02cancelled 2019-12-24
Successor callsigns
Callsigns held now by people who previously held KP4CRG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4CRG, oldest first.
- MATOS SR, JOSE F PR2006-03-30 → cancelled 2018-06-19
- Caribbean Radio Emergency Group PR2019-12-24 active