N9TPB FCC License Search

🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 4, 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

KD4SKI HAM

✅ Available for a vanity request — free since May 25, 2021.

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 · 2 holders on record · available since May 25, 2021

Previous holder: Christopher A Kadlubowski

Held KD4SKI Dec 14, 2018 → May 24, 2019 · first licensed Jun 25, 2014 as KM4CPT · 4 licenses · FRN 0020501417

📦 Moved: Osgood, IN → Austin, IN

N9ICV Active Technician · vanity May 24, 2019 → expires May 24, 2029

Licensee
Christopher A Kadlubowski

Address
6950 N. Bogardus Rd.
Austin, IN 47102
38.7933, -85.7582 (street) · Grid EM78ct · CQ 4 · ITU 8 · map ↗

FRN
0020501417

Previous call
KD4SKI

Last granted
May 24, 2019

Effective
Oct 4, 2023

Last action
Oct 4, 2023
FCC actions (5)
- Oct 4, 2023 — Administrative update LIAUA
- Aug 11, 2022 — Administrative update LIAUA
- Aug 4, 2022 — Administrative update LIAUA
- May 24, 2019 — Vanity call sign granted VANGRT
- May 24, 2019 — License issued LIISS
KD4SKI Canceled Technician · vanity Dec 14, 2018 → May 24, 2019 (canceled)

Licensee
Christopher A Kadlubowski

Address
242 W. Beech St.
Osgood, IN 47037
39.1695, -85.3257 (ZIP center) · Grid EM79ie · CQ 4 · ITU 8 · map ↗

FRN
0020501417

Previous call
KD4DTX

Last granted
Dec 14, 2018

Effective
Dec 14, 2018

Last action
May 24, 2019
FCC actions (3)
- May 24, 2019 — License canceled LICAN
- Dec 14, 2018 — Vanity call sign granted VANGRT
- Dec 14, 2018 — License issued LIISS
📦 Moved: Wyandotte, MI → Osgood, IN

KD4DTX Canceled Technician · vanity Oct 2, 2015 → Dec 14, 2018 (canceled)

Licensee
Christopher A Kadlubowski

Address
242 W. Beech St.
Osgood, IN 47037
39.1695, -85.3257 (ZIP center) · Grid EM79ie · CQ 4 · ITU 8 · map ↗

FRN
0020501417

Previous call
KM4CPT

Last granted
Oct 2, 2015

Effective
Oct 20, 2018

Last action
Dec 14, 2018
FCC actions (5)
- Dec 14, 2018 — License canceled LICAN
- Oct 20, 2018 — Administrative update LIAUA
- Dec 20, 2016 — Administrative update LIAUA
- Oct 2, 2015 — Vanity call sign granted VANGRT
- Oct 2, 2015 — License issued LIISS
KM4CPT Canceled Technician Jun 25, 2014 → Oct 2, 2015 (canceled)

Licensee
Christopher A Kadlubowski

Address
4307 17th St
Wyandotte, MI 48192
42.2107, -83.1572 (ZIP center) · Grid EN82kf · CQ 4 · ITU 8 · map ↗

FRN
0020501417

Last granted
Jun 25, 2014

Effective
Jul 7, 2015

Last action
Oct 2, 2015
FCC actions (5)
- Oct 2, 2015 — License canceled LICAN
- Jul 7, 2015 — Administrative update LIAUA
- Jul 29, 2014 — Administrative update LIAUA
- Jun 25, 2014 — License issued LIISS
- Jun 25, 2014 — Systematic call sign granted SYSGRT

Address history

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

Seen Apr 27, 2024 → Oct 4, 2026 · 12 snapshots · as N9ICV
Christopher A Kadlubowski
6950 N. Bogardus Rd., Austin, IN 47102
38.7933, -85.7582 (street) · Grid EM78ct · CQ 4 · ITU 8 · map ↗
Seen Jan 22, 2019 → Oct 4, 2026 · 31 snapshots · as KD4DTX
Christopher A Kadlubowski
242 W. Beech St., Osgood, IN 47037
39.1695, -85.3257 (ZIP center) · Grid EM79ie · CQ 4 · ITU 8 · map ↗
Seen Aug 2, 2015 → Oct 4, 2026 · 41 snapshots · as KM4CPT
Christopher A Kadlubowski
4307 17th St, Wyandotte, MI 48192
42.2107, -83.1572 (ZIP center) · Grid EN82kf · CQ 4 · ITU 8 · map ↗
Seen Dec 31, 2016 → Sep 3, 2018 · 8 snapshots · as KD4DTX
Christopher A Kadlubowski
904 Oak St, Wyandotte, MI 48192
42.2107, -83.1572 (ZIP center) · Grid EN82kf · CQ 4 · ITU 8 · map ↗
Seen Mar 28, 2015 → Jun 6, 2015 · 3 snapshots · as KM4CPT
Christopher A Kadlubowski
4469 High St APT #19, Ecorse, MI 48229
42.2496, -83.1404 (ZIP center) · Grid EN82kf · CQ 4 · ITU 8 · map ↗

Previous holder: PATRICK C WILLIAMS

Held KD4SKI Aug 18, 1992 → Aug 18, 2002 · first licensed Aug 18, 1992 as KD4SKI · 1 license · no FRN on file (pre-2001 records)

KD4SKI Expired Technician Aug 18, 1992 → Aug 18, 2002 (expired)

Licensee
PATRICK C WILLIAMS

Address
PSC 4 BOX 1179
APO, AA 34004

Last granted
Aug 18, 1992

Effective
Aug 18, 1992

Last action
Aug 19, 2004
FCC actions (1)
- Aug 19, 2004 — License expired LIEXP

Address history

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

Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as KD4SKI
PATRICK C WILLIAMS
PSC 4 BOX 1179, APO, AA 34004

Others requesting KD4SKI

1 application listed KD4SKI as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Nov 26, 2018	Dec 14, 2018	KD4DTX · Christopher A Kadlubowski · Osgood, IN	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KD4SKI in the last 24 hours. They show up here within seconds of KD4SKI beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.