Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9SSD callsign genealogy
Currently held by Hahnlen, Patrick J
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 K9SSD's current licensee, walking backwards.
- Hahnlen, Patrick JVAgranted 2015-07-23cancelled 2016-01-29
Successor callsigns
Callsigns held now by people who previously held K9SSD.
No current licensee on record previously held this callsign.