Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1ZRO callsign genealogy
Currently held by Whitehill, James D
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 W1ZRO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W1ZRO.
- Whitehill, James DMOgranted 2007-12-08cancelled 2017-05-19