Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ZF callsign genealogy
Currently held by ROMAN, CARLOS 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 KP4ZF's current licensee, walking backwards.
- ROMAN, CARLOS APRgranted 2010-10-19cancelled 2013-07-30
Successor callsigns
Callsigns held now by people who previously held KP4ZF.
- OJEDA, RAMONPRgranted 2009-05-05cancelled 2016-06-21
All historical holders
Every license row we've seen with the callsign KP4ZF, oldest first.
- ROMAN, CARLOS A FL2023-06-28 active
- OJEDA, RAMON— → cancelled 1999-07-27