Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4BO callsign genealogy
Currently held by Asociacion De Radioaficionados De Puerto Rico Inc
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 KP4BO's current licensee, walking backwards.
- WP4PRUcancelledAsociacion De Radioaficionados De Puerto Rico IncPRgranted 2016-07-14cancelled 2016-08-12
Successor callsigns
Callsigns held now by people who previously held KP4BO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4BO, oldest first.
- VALLS, PELAYO PR1994-02-08 → cancelled 2006-02-09
- Asociacion De Radioaficionados De Puerto Rico Inc PR2016-08-12 active