Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0OOS callsign genealogy
Currently held by Smith, Jason 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 K0OOS's current licensee, walking backwards.
- Smith, Jason SNEgranted 2011-05-10cancelled 2011-06-01
Successor callsigns
Callsigns held now by people who previously held K0OOS.
- Smith, Jason SNEgranted 2017-08-25