Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5SEK callsign genealogy
Currently held by Klemp, Sherwin E
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 K5SEK's current licensee, walking backwards.
- Klemp, Sherwin ETXgranted 2015-10-26cancelled 2015-11-13
Successor callsigns
Callsigns held now by people who previously held K5SEK.
No current licensee on record previously held this callsign.