Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4YSF callsign genealogy
Currently held by North East TN Digital Association
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 W4YSF's current licensee, walking backwards.
- KM4UYLcancelledNorth East TN Digital AssociationTNgranted 2016-06-27cancelled 2016-07-15
Successor callsigns
Callsigns held now by people who previously held W4YSF.
No current licensee on record previously held this callsign.