Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9TTL callsign genealogy
Currently held by LANGE, JASON S
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 W9TTL's current licensee, walking backwards.
- LANGE, JASON SINgranted 1999-11-25cancelled 2000-11-17
Successor callsigns
Callsigns held now by people who previously held W9TTL.
No current licensee on record previously held this callsign.