Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0ACR callsign genealogy
Currently held by SHEEHAN, JOHN G
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 N0ACR's current licensee, walking backwards.
- Stefaniak, Joshua JMOgranted 2012-05-31cancelled 2013-02-22
Successor callsigns
Callsigns held now by people who previously held N0ACR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ACR, oldest first.
- SHEEHAN, JOHN G MN1989-02-14 → cancelled 2001-02-15
- Stefaniak, Joshua J MO2024-03-12 active