Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB7RRT callsign genealogy
Currently held by LINCICUM, STEPHEN D
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 KB7RRT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KB7RRT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB7RRT, oldest first.
- BLANDEN, JOHN C OH1994-03-29 → cancelled 2006-03-30
- LINCICUM, STEPHEN D AZ2021-09-21 active