Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7ZOS callsign genealogy
Currently held by HJERLEID JR, STANLEY O
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 W7ZOS's current licensee, walking backwards.
- HJERLEID JR, STANLEY OCOgranted 2018-02-24
Successor callsigns
Callsigns held now by people who previously held W7ZOS.
- HJERLEID JR, STANLEY OCOgranted 2018-02-24