Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4ZWY callsign genealogy
Currently held by RIVERA, REYNALDO
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 KP4ZWY's current licensee, walking backwards.
- RIVERA, REYNALDOFLgranted 2016-12-22cancelled 2020-10-16
Successor callsigns
Callsigns held now by people who previously held KP4ZWY.
- RIVERA, REYNALDOPRgranted 2025-03-04