N9TPB FCC License Search

🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 2026) · next update tomorrow 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

K0ISU HAM

✅ Available for a vanity request — free since Feb 14, 2026.

1x3 call: Technician, General, Advanced and Amateur Extra licensees 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 Feb 14, 2026

Previous holder: Joshua M Prins

Held K0ISU Sep 5, 2007 → Feb 13, 2024 · first licensed Feb 23, 2000 as KC0HGD · 3 licenses · FRN 0002324440

N0PH Active Amateur Extra · vanity Feb 13, 2024 → expires Feb 13, 2034

Licensee
Joshua M Prins

Address
711 Coventry Ln
Hartland, WI 53029
43.0933, -88.3344 (street) · Grid EN53tc · CQ 4 · ITU 8 · map ↗

FRN
0002324440

Previous call
K0ISU (Technician)

Last granted
Feb 13, 2024

Effective
Feb 13, 2024

Last action
Feb 13, 2024
FCC actions (2)
- Feb 13, 2024 — Vanity call sign granted VANGRT
- Feb 13, 2024 — License issued LIISS
📦 Moved: Belleville, WI → Hartland, WI

K0ISU Canceled Amateur Extra · vanity Sep 5, 2007 → Feb 13, 2024 (canceled)

Licensee
Joshua M Prins

Address
711 Coventry Ln
Hartland, WI 53029
43.0933, -88.3344 (street) · Grid EN53tc · CQ 4 · ITU 8 · map ↗

FRN
0002324440

Previous call
KC0HGD (Technician)

Last granted
Aug 15, 2017

Effective
Sep 26, 2022

Last action
Feb 13, 2024
FCC actions (7)
- Feb 13, 2024 — License canceled LICAN
- Sep 26, 2022 — License modified LIMOD
- Aug 15, 2017 — License renewed LIREN
- Feb 20, 2013 — Administrative update LIAUA
- Jun 17, 2008 — Administrative update LIAUA
- Sep 5, 2007 — Vanity call sign granted VANGRT
- Sep 5, 2007 — License issued LIISS
KC0HGD Canceled Technician Feb 23, 2000 → Sep 5, 2007 (canceled)

Licensee
Joshua M Prins

Address
625 Sugar Ave
Belleville, WI 53508
42.8662, -89.5756 (ZIP center) · Grid EN52fu · CQ 4 · ITU 8 · map ↗

FRN
0002324440

Last granted
Feb 23, 2000

Effective
Jun 14, 2006

Last action
Sep 5, 2007
FCC actions (4)
- Sep 5, 2007 — License canceled LICAN
- Jun 14, 2006 — Administrative update LIAUA
- Mar 13, 2004 — Administrative update LIAUA
- Feb 23, 2000 — License issued LIISS

Address history

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

Seen Apr 6, 2013 → Sep 27, 2026 · 51 snapshots · as K0ISU
Joshua M Prins
711 Coventry Ln, Hartland, WI 53029
43.0933, -88.3344 (street) · Grid EN53tc · CQ 4 · ITU 8 · map ↗
Seen May 27, 2010 → Sep 27, 2026 · 46 snapshots · as KC0HGD
Joshua M Prins
625 Sugar Ave, Belleville, WI 53508
42.8662, -89.5756 (ZIP center) · Grid EN52fu · CQ 4 · ITU 8 · map ↗
Seen May 27, 2010 → Feb 18, 2013 · 6 snapshots · as K0ISU
Joshua M Prins
3475 Whitehall Ave, Marion, IA 52302
42.0654, -91.5609 (ZIP center) · Grid EN42fb · CQ 4 · ITU 7 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as KC0HGD
Joshua M Prins
5119 Lilac Ln, Racine, WI 53406
42.7345, -87.8649 (ZIP center) · Grid EN62br · CQ 4 · ITU 8 · map ↗

Others requesting K0ISU

3 applications listed K0ISU as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Aug 17, 2007	Sep 4, 2007	KC0HGD · Joshua M Prins · Belleville, WI	1	Granted
Jan 10, 2001	Jan 28, 2001	WA0KHF · CYCLONE ARC OF UNION DRIVE ASSN · AMES, IA	2	Granted
Jan 2, 2001	Jan 20, 2001	WA0KHF · CYCLONE ARC OF UNION DRIVE ASSN · AMES, IA	2	Withdrawn

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K0ISU in the last 24 hours. They show up here within seconds of K0ISU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.