Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9BAT callsign genealogy
Currently held by MAY, HAROLD E
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 N9BAT's current licensee, walking backwards.
- Torphy, Barry ANVgranted 2021-10-04cancelled 2021-10-22
Successor callsigns
Callsigns held now by people who previously held N9BAT.
- W9SWactiveCHICAGO SUBURBAN RADIO ASSOCIATIONILgranted 2024-12-05
All historical holders
Every license row we've seen with the callsign N9BAT, oldest first.
- MAY, HAROLD E IL1995-02-09 → cancelled 2001-03-29
- CHICAGO SUBURBAN RADIO ASSOCIATION IL2013-05-01 → cancelled 2015-02-18
- Torphy, Barry A NV2021-10-22 active