N9TPB FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update tomorrow 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

KN4USD HAM

✅ Available for a vanity request — free since Jun 12, 2021.
2x3 call: any licensee can request it. No pending applications list it.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Jun 12, 2021

Previous holder: Joseph C Hogan Jr

Held KN4USD May 22, 2019 → Jun 11, 2019 · first licensed May 22, 2019 as KN4USD · 2 licenses · FRN 0028481323

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

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KN4USD in the last 24 hours. They show up here within seconds of KN4USD beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.