Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NW4TF callsign genealogy
Currently held by Lytjen, John M
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 NW4TF's current licensee, walking backwards.
- Lytjen, John MGAgranted 2016-01-25cancelled 2016-10-01
Successor callsigns
Callsigns held now by people who previously held NW4TF.
No current licensee on record previously held this callsign.