N9TPB FCC License Search
🕒 FCC license data updated yesterday 8:30 am CDT (FCC files through Oct 1, 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

KR4AOS HAM

⏳ Not available yet — opens for vanity requests Feb 12, 2027, two years after the license was canceled (Feb 11, 2025).
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

Previous holder: Aaron Hildebrand

Held KR4AOS Jan 19, 2024 → Feb 11, 2025 · first licensed Jan 19, 2024 as KQ4NWT · 3 licenses · FRN 0034750687

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 KR4AOS in the last 24 hours. They show up here within seconds of KR4AOS beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.