N9TPB FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 14, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

KO4ZJN HAM

✅ Available for a vanity request — free since Apr 27, 2024.
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 Apr 27, 2024

Previous holder: Wireless Amateur Radio Club

Held KO4ZJN Apr 6, 2022 → Apr 26, 2022 · first licensed Apr 6, 2022 as KO4ZJN · 2 licenses · FRN 0032196859

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 KO4ZJN in the last 24 hours. They show up here within seconds of KO4ZJN beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.