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

KN4BTJ HAM

✅ Available for a vanity request — free since Apr 14, 2020.
2x3 call: any licensee can request it. No pending applications list it.

📬 QSL: LoTW user · last upload Nov 23, 2018 · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Apr 14, 2020

Previous holder: Paul W Tampien

Held KN4BTJ Mar 15, 2017 → Apr 13, 2018 · first licensed Mar 15, 2017 as KN4BTJ · 2 licenses · FRN 0026300004

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 KN4BTJ in the last 24 hours. They show up here within seconds of KN4BTJ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.