Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1TPS callsign genealogy
Currently held by OSBORN, OWEN 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 N1TPS's current licensee, walking backwards.
- Shamshak JR, Thomas PMAgranted 2017-02-24cancelled 2019-11-19
Successor callsigns
Callsigns held now by people who previously held N1TPS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1TPS, oldest first.
- OSBORN, OWEN S VT2005-02-01 → cancelled 2017-02-02
- Shamshak JR, Thomas P MA2019-11-19 active