Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1OBX callsign genealogy
Currently held by Harkness, John
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 K1OBX's current licensee, walking backwards.
- Harkness, JohnNJgranted 2013-10-17cancelled 2020-09-19
Successor callsigns
Callsigns held now by people who previously held K1OBX.
No current licensee on record previously held this callsign.