Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4TAP callsign genealogy
Currently held by Campbell, James T
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 N4TAP's current licensee, walking backwards.
- Campbell, James TFLgranted 2025-11-21cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held N4TAP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TAP, oldest first.
- Apple, Todd W NC2012-12-18 → cancelled 2024-12-19
- Campbell, James T FL2025-12-09 active