Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SOK callsign genealogy
Currently held by Sokolowski, Erik D
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 K4SOK's current licensee, walking backwards.
- Sokolowski, Erik DVAgranted 2018-10-02cancelled 2018-10-20
Successor callsigns
Callsigns held now by people who previously held K4SOK.
No current licensee on record previously held this callsign.