Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0HAC callsign genealogy
Currently held by COLBURN, WILLIAM 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 N0HAC's current licensee, walking backwards.
- KD3CVKcancelledHacDCDCgranted 2026-03-18cancelled 2026-04-07
Successor callsigns
Callsigns held now by people who previously held N0HAC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0HAC, oldest first.
- COLBURN, WILLIAM A CA2004-01-07 → cancelled 2016-02-23
- HacDC DC2026-04-07 active