Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4TNP callsign genealogy
Currently held by Long, Christopher E
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 KD4TNP's current licensee, walking backwards.
- Long, Christopher EFLgranted 2016-11-01cancelled 2016-11-19
Successor callsigns
Callsigns held now by people who previously held KD4TNP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4TNP, oldest first.
- LONG, CHRISTOPHER E FL2002-09-12 → cancelled 2014-10-07
- Long, Christopher E FL2016-11-19 active