N9TPB FCC License Search
🕒 FCC license data updated yesterday 7:16 am CDT (FCC files through Oct 7, 2026) · next update today 7:15 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)

KD4SI HAM

✅ Available for a vanity request — free since Jan 31, 2026.
2x2 call: Advanced and Amateur Extra licensees can request it. No pending applications list it.
Last requested Nov 22, 2023 as choice 1: granted.

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

Not currently held · 1 holder on record · available since Jan 31, 2026

Previous holder: FERNANDO VILLANUEVA MORENO

Held KD4SI Dec 12, 2023 → Jan 30, 2024 · first licensed Sep 18, 2018 as KI5BQF · 4 licenses · FRN 0027859172

Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Earlier Holders

KD4SI in the 1993–2003 Callbooks
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.
KD4SI 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 KD4SI

1 application listed KD4SI as a choice, newest first.

FiledAwardApplicantChoice #KD4SIResult
Nov 22, 2023 Dec 10, 2023 KI5JFK · FERNANDO VILLANUEVA MORENO · MIAMI, FL 1Granted Granted this call

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KD4SI in the last 24 hours. They show up here within seconds of KD4SI beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.