Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9LNL callsign genealogy
Currently held by Bustamante, Sarah E
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 W9LNL's current licensee, walking backwards.
- Bustamante, Sarah EWIgranted 2010-09-24cancelled 2015-06-26
Successor callsigns
Callsigns held now by people who previously held W9LNL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9LNL, oldest first.
- OEHLER, THOMAS A WI2009-05-29 → cancelled 2013-07-22
- Bustamante, Sarah E WI2025-06-24 active