Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB9IU callsign genealogy
Currently held by Lemon, John C
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 AB9IU's current licensee, walking backwards.
- Lemon, John CINgranted 1998-09-30cancelled 2004-04-07
Successor callsigns
Callsigns held now by people who previously held AB9IU.
- Lemon, John CINgranted 2014-08-15cancelled 2020-02-19