Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0TSP callsign genealogy
Currently held by Pickton, Todd S
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 N0TSP's current licensee, walking backwards.
- Pickton, Todd SCOgranted 2017-02-21cancelled 2018-03-06
Successor callsigns
Callsigns held now by people who previously held N0TSP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0TSP, oldest first.
- HARRISON, PETER K MO2004-03-10 → cancelled 2016-03-23
- Pickton, Todd S CO2018-03-06 active