Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K4REI callsign genealogy
Currently held by Rausch, Walter 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 K4REI's current licensee, walking backwards.
- Rausch, Walter JNCgranted 2021-10-22cancelled 2021-11-27
Successor callsigns
Callsigns held now by people who previously held K4REI.
- Rausch, Walter JNCgranted 2024-11-22
All historical holders
Every license row we've seen with the callsign K4REI, oldest first.
- Caro, Carlos J MD2004-03-31 → cancelled 2016-04-01
- Rausch, Walter J NC2021-11-27 → cancelled 2024-11-22