Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4FP callsign genealogy
Currently held by RAMOS, TONY
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 KP4FP's current licensee, walking backwards.
- WP4NPFcancelledAguadilla DX & Contest ClubPRgranted 2004-01-22cancelled 2004-02-20
Successor callsigns
Callsigns held now by people who previously held KP4FP.
- RAMOS, TONYPRgranted 2020-07-21
All historical holders
Every license row we've seen with the callsign KP4FP, oldest first.
- RAMOS, TONY PR1997-09-16 → cancelled 2000-05-12
- Aguadilla DX & Contest Club PR2004-02-20 → cancelled 2016-02-23