Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5NTW callsign genealogy
Currently held by Richardson, John J
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 KD5NTW's current licensee, walking backwards.
- Richardson, John JARgranted 2018-08-17cancelled 2018-09-12
Successor callsigns
Callsigns held now by people who previously held KD5NTW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5NTW, oldest first.
- Richardson, John J AR2001-03-20 → cancelled 2013-03-21
- Richardson, John J AR2018-09-12 active