Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1ACR callsign genealogy
Currently held by GRUSS, JOHN S
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 W1ACR's current licensee, walking backwards.
- GRUSS, BRIAN PCTgranted 2012-05-29cancelled 2021-03-16
Successor callsigns
Callsigns held now by people who previously held W1ACR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1ACR, oldest first.
- GRUSS, JOHN S CT1987-09-15 → cancelled 1999-09-16
- GRUSS, BRIAN P CT2021-03-16 active