Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5ROB callsign genealogy
Currently held by RADICAN, ROBERT R
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 K5ROB's current licensee, walking backwards.
- CALHOUN JR, ROBERT LMSgranted 2002-11-15cancelled 2010-02-06
Successor callsigns
Callsigns held now by people who previously held K5ROB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5ROB, oldest first.
- RADICAN, ROBERT R TX1998-01-08 → cancelled 2010-01-09
- CALHOUN JR, ROBERT L AL2020-01-04 active