Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4TBI callsign genealogy
Currently held by LARK, DAVID 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 N4TBI's current licensee, walking backwards.
- Lark, David ATNgranted 2001-03-21cancelled 2006-12-05
Successor callsigns
Callsigns held now by people who previously held N4TBI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TBI, oldest first.
- MILLER, DAVID D FL1993-04-13 → cancelled 2005-04-14
- LARK, DAVID A TN2017-01-05 active