Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0ARK callsign genealogy
Currently held by POWER, WILLIAM D
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 K0ARK's current licensee, walking backwards.
- BISHOP, ALLEN PCOgranted 2007-05-14cancelled 2008-04-18
Successor callsigns
Callsigns held now by people who previously held K0ARK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0ARK, oldest first.
- POWER, WILLIAM D KS1995-06-19 → cancelled 2007-06-20
- BISHOP, ALLEN P CO2018-01-23 active