Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM5DI callsign genealogy
Currently held by CULLINAN, ROBERT B
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 KM5DI's current licensee, walking backwards.
- CULLINAN, ROBERT BTXgranted 2005-06-13cancelled 2005-07-02
Successor callsigns
Callsigns held now by people who previously held KM5DI.
- Cullinan, Robert BCAgranted 2019-03-22
All historical holders
Every license row we've seen with the callsign KM5DI, oldest first.
- CULLINAN, ROBERT B TX1996-09-17 → cancelled 2005-02-10
- Cullinan, Robert B CA2015-06-09 → cancelled 2019-03-22