Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4TBB callsign genealogy
Currently held by Tubb, Zachary C
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 K4TBB's current licensee, walking backwards.
- Tubb, Zachary CVAgranted 2017-06-21cancelled 2017-07-18
Successor callsigns
Callsigns held now by people who previously held K4TBB.
No current licensee on record previously held this callsign.