Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9PHK callsign genealogy
Currently held by Portentoso, Nicholas 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 K9PHK's current licensee, walking backwards.
- Portentoso, Nicholas DOHgranted 2018-04-20cancelled 2022-06-18
Successor callsigns
Callsigns held now by people who previously held K9PHK.
No current licensee on record previously held this callsign.