Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9LEO callsign genealogy
Currently held by RITTENHOUSE, LEO L
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 K9LEO's current licensee, walking backwards.
- RITTENHOUSE, LEO LKSgranted 1999-05-05cancelled 2001-09-28
Successor callsigns
Callsigns held now by people who previously held K9LEO.
No current licensee on record previously held this callsign.