Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5EIN callsign genealogy
Currently held by Kleinfelder, Donald J
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 K5EIN's current licensee, walking backwards.
- Kleinfelder, Donald JTXgranted 2013-08-23cancelled 2013-09-13
Successor callsigns
Callsigns held now by people who previously held K5EIN.
No current licensee on record previously held this callsign.