Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5FBO callsign genealogy
Currently held by Knight, Mark A
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 K5FBO's current licensee, walking backwards.
- Knight, Mark ATXgranted 2011-01-14cancelled 2011-02-05
Successor callsigns
Callsigns held now by people who previously held K5FBO.
No current licensee on record previously held this callsign.