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

N3KOI HAM

👀 Looked up 1 time by 1 person on this site

✅ Available for a vanity request — free since Sep 25, 2023.
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. 1 pending application already lists it (first filed Oct 6, 2026) — see requests.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Sep 25, 2023

Previous holder: RAYMOND R CASTNER

Held N3KOI Sep 24, 1991 → Sep 24, 2021 · first licensed Sep 24, 1991 as N3KOI · 1 license · FRN 0005115118

Callbook Records, 1993–2003
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
N3KOI 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.

Others Requesting N3KOI

1 application listed N3KOI as a choice, newest first.

FiledAwardApplicantChoice #N3KOIResult
Oct 6, 2026 Oct 24, 2026 (on or after) KD3DXE · Edward A House · Philadelphia, PA 1Pending Pending

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for N3KOI in the last 24 hours. They show up here within seconds of N3KOI beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.