Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0HLO callsign genealogy
Currently held by OLSON, HARLAN L
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 W0HLO's current licensee, walking backwards.
- OLSON, HARLAN LCOgranted 2015-02-17cancelled 2019-03-12
Successor callsigns
Callsigns held now by people who previously held W0HLO.
No current licensee on record previously held this callsign.