Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KR7SH callsign genealogy
Currently held by Krishnan, Prem K
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 KR7SH's current licensee, walking backwards.
- Krishnan, Prem KWAgranted 2015-06-01cancelled 2015-07-25
Successor callsigns
Callsigns held now by people who previously held KR7SH.
No current licensee on record previously held this callsign.