Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4AC callsign genealogy
Currently held by JIMENEZ, ROBERTO L
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 KP4AC's current licensee, walking backwards.
- JIMENEZ, ROBERTO LPRgranted 1997-04-17cancelled 2006-06-20
Successor callsigns
Callsigns held now by people who previously held KP4AC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4AC, oldest first.
- JANER, CARLOS L PR1994-05-31 → cancelled 2006-06-01
- JIMENEZ, ROBERTO L PR2026-06-23 active