Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4AK callsign genealogy
Currently held by RIVERA, AMADOR 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 KP4AK's current licensee, walking backwards.
- RIVERA, AMADORPRgranted 1997-01-13cancelled 2005-03-22
Successor callsigns
Callsigns held now by people who previously held KP4AK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4AK, oldest first.
- VELEZ SANTIAGO, RAFAEL PR1989-01-10 → cancelled 2001-01-11
- RIVERA, AMADOR A NY2025-01-11 active