Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4QJT callsign genealogy
Currently held by NIEVES, LUIS M
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 KP4QJT's current licensee, walking backwards.
- NIEVES, LUIS MPRgranted 2018-09-06cancelled 2019-07-09
Successor callsigns
Callsigns held now by people who previously held KP4QJT.
- NIEVES, LUIS MPRgranted 2021-04-06