Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2SID callsign genealogy
Currently held by GROSVENOR, SIDNEY Q
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 K2SID's current licensee, walking backwards.
- Sharma, SiddharthCAgranted 2017-09-19cancelled 2017-10-11
Successor callsigns
Callsigns held now by people who previously held K2SID.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2SID, oldest first.
- GROSVENOR, SIDNEY Q TX1999-05-26 → cancelled 2011-05-27
- Sharma, Siddharth CA2017-10-11 active