Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ASN callsign genealogy
Currently held by PICO VALLEJO, FRANCISCO J
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 KP4ASN's current licensee, walking backwards.
- Pico-Lacomba, Luis APRgranted 2018-11-13cancelled 2018-12-04
Successor callsigns
Callsigns held now by people who previously held KP4ASN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4ASN, oldest first.
- PICO VALLEJO, FRANCISCO J PR1992-12-22 → cancelled 2004-12-23
- Pico-Lacomba, Luis A PR2018-12-04 active