Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KU6MAC callsign genealogy
Currently held by Crespo, Ulysses
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 KU6MAC's current licensee, walking backwards.
- Crespo, UlyssesGAgranted 2024-01-03cancelled 2024-01-23
Successor callsigns
Callsigns held now by people who previously held KU6MAC.
No current licensee on record previously held this callsign.