Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD0OOM callsign genealogy
Currently held by OTERO, JOSEPH E
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 KD0OOM's current licensee, walking backwards.
- Rognholt, Brian JMNgranted 2014-02-13cancelled 2016-02-23
Successor callsigns
Callsigns held now by people who previously held KD0OOM.
- OTERO, JOSEPH EMOgranted 2021-06-08
All historical holders
Every license row we've seen with the callsign KD0OOM, oldest first.
- OTERO, JOSEPH E MO2011-05-09 → cancelled 2011-07-06
- ROGNHOLT, BRIAN J MN2026-01-15 active