Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5OBX callsign genealogy
Currently held by GEITZ, JOHN 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 K5OBX's current licensee, walking backwards.
- GEITZ, JOHN LTXgranted 2010-08-26cancelled 2014-07-08
Successor callsigns
Callsigns held now by people who previously held K5OBX.
No current licensee on record previously held this callsign.