Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4AHO callsign genealogy
Currently held by PATTERSON, DOUGLAS R
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 N4AHO's current licensee, walking backwards.
- PATTERSON, DOUGLAS RSCgranted 2016-02-08cancelled 2016-10-14
Successor callsigns
Callsigns held now by people who previously held N4AHO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4AHO, oldest first.
- BIRD, MAFUS R AL1988-09-06 → cancelled 2000-09-07
- PATTERSON, DOUGLAS R SC2026-09-11 active