Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1HAK callsign genealogy
Currently held by KINGSFORD, HOWARD A
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 W1HAK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W1HAK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1HAK, oldest first.
- KINGSFORD, HOWARD A FL2011-12-13 → cancelled 2023-12-14
- Mateus, Joshua CA2024-01-03 active