N9TPB FCC License Search
🕒 FCC license data updated yesterday 7:15 am CST (FCC files through Nov 3, 2026) · next update today 6:00 am CST
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)

KN4OOL HAM

✅ Available for a vanity request — free since Sep 8, 2020.
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 Sep 8, 2020

Previous holder: Eric P Hetzer

Held KN4OOL Aug 20, 2018 → Sep 7, 2018 · first licensed Aug 20, 2018 as KN4OOL · 2 licenses · FRN 0021947213

Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
KN4OOL in the Printed Callbooks, 1909–1997
From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KN4OOL in the last 24 hours. They show up here within seconds of KN4OOL beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.