Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9JSL callsign genealogy
Currently held by LITWIN, JAKE 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 W9JSL's current licensee, walking backwards.
- LAWRENCE, JAMES SILgranted 2024-09-12cancelled 2024-10-04
Successor callsigns
Callsigns held now by people who previously held W9JSL.
- Litwin, JakeMNgranted 2024-07-17
All historical holders
Every license row we've seen with the callsign W9JSL, oldest first.
- LITWIN, JAKE S WI2008-10-17 → cancelled 2014-09-06
- LAWRENCE, JAMES S IL2024-10-04 active