Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4RNU callsign genealogy
Currently held by GARRISON, HAROLD H
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 W4RNU's current licensee, walking backwards.
- GARRISON, HAROLD RNCgranted 2002-10-25cancelled 2003-10-17
- KD4BBBno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W4RNU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4RNU, oldest first.
- GARRISON, HAROLD H NC1997-05-19 → cancelled 2003-08-06
- GARRISON, HAROLD R NC2023-08-18 active