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

KN4CXO HAM

✅ Available for a vanity request — free since Feb 15, 2020.
2x3 call: any licensee can request it. No pending applications list it.

📬 QSL: LoTW user · last upload Feb 5, 2018 · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Feb 15, 2020

Previous holder: James D Pierson

Held KN4CXO Apr 28, 2017 → Feb 14, 2018 · first licensed Apr 28, 2017 as KN4CXO · 3 licenses · FRN 0026454587

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 KN4CXO in the last 24 hours. They show up here within seconds of KN4CXO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.