Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4IOP callsign genealogy
Currently held by Stillway, Lewis W
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 W4IOP's current licensee, walking backwards.
- Stillway, Lewis WSCgranted 2012-04-25cancelled 2013-07-23
Successor callsigns
Callsigns held now by people who previously held W4IOP.
No current licensee on record previously held this callsign.