N9TPB FCC License Search
🕒 FCC license data updated yesterday 9:45 am CDT · 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

KO4ABU HAM

✅ Available for a vanity request — free since Jan 5, 2022.
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 Jan 5, 2022

Previous holder: CHARLES L MACKALINE

Held KO4ABU Nov 18, 2019 → Jan 4, 2020 · first licensed Nov 18, 2019 as KO4ABU · 2 licenses · FRN 0028852374

Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
KO4ABU 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 KO4ABU in the last 24 hours. They show up here within seconds of KO4ABU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.