N9TPB FCC License Search

🕒 FCC license data updated yesterday 9:42 am CDT (FCC files through Sep 30, 2026) · next update today 6:00 am CDT

Ask: HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WI

AC4OA HAM

✅ Available for a vanity request — free since Feb 4, 2001.

2x2 call: only Amateur Extra licensees can request it. No pending applications list it.

Not currently held · 1 holder on record · available since Feb 4, 2001

Previous holder:

Held AC4OA → Feb 3, 1999 · first licensed as AC4OA · 1 license · no FRN on file (pre-2001 records)

AC4OA Canceled Amateur Extra → Feb 3, 1999 (canceled)

Licensee

Address

Last granted

Effective

Last action

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Nov 7, 2004 → Sep 27, 2026 · 47 snapshots · as AC4OA

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for AC4OA in the last 24 hours. They show up here within seconds of AC4OA beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.