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

AARON S OSTERWYK

FRN 0032132375 · first licensed May 4, 2022 as KF0IZW · 2 licenses on record

📻 GMRS licenses on this FRN

GMRS call	Status	Name	Location	Granted	Expires
WRPV333	Active	Aaron S Osterwyk	Duluth, MN	Mar 22, 2022	Mar 22, 2032

📝 FCC applications (7)

Received	File number	Service	Purpose	Status	Call
Dec 17, 2025	0011834138	HAM	Modification	Granted	KF0IZW
Nov 26, 2025	0011800022	HAM	Modification	Dismissed	KF0IZW
Nov 24, 2025	0011787308	HAM	Withdrawal	Withdrawn	KF0IZW
Nov 21, 2025	0011785329	HAM	Modification	Granted	KF0IZW
Feb 20, 2024	0010929868	HAM	Modification	Granted	KF0IZW
Apr 25, 2022	0010020569	HAM	New license	Granted	KF0IZW
Mar 21, 2022	0009962341	GMRS	New license	Granted

Complete licensing history

AA0AF Active Amateur Extra · vanity Jan 6, 2026 → expires Jan 6, 2036

Licensee
AARON S OSTERWYK

Address
4261 TIMBERRIDGE LN APT E
DULUTH, MN 55811-4045
46.8151, -92.1889 (street) · Grid EN36vt · CQ 4 · ITU 7 · map ↗

FRN
0032132375

Previous call
KF0IZW (General)

Last granted
Jan 6, 2026

Effective
Jan 6, 2026

Last action
Jan 6, 2026
FCC actions (2)
- Jan 6, 2026 — Vanity call sign granted VANGRT
- Jan 6, 2026 — License issued LIISS
KF0IZW Canceled Amateur Extra May 4, 2022 → Jan 6, 2026 (canceled)

Licensee
AARON S OSTERWYK

Address
4261 TIMBERRIDGE LN APT E
DULUTH, MN 55811-4045
46.8151, -92.1889 (street) · Grid EN36vt · CQ 4 · ITU 7 · map ↗

FRN
0032132375

Last granted
May 4, 2022

Effective
Nov 21, 2025

Last action
Jan 6, 2026
FCC actions (5)
- Jan 6, 2026 — License canceled LICAN
- Nov 21, 2025 — License modified LIMOD
- Feb 20, 2024 — License modified LIMOD
- May 4, 2022 — License issued LIISS
- May 4, 2022 — 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 · 14 snapshots · as KF0IZW
AARON S OSTERWYK
4261 TIMBERRIDGE LN APT E, DULUTH, MN 55811-4045
46.8151, -92.1889 (street) · Grid EN36vt · CQ 4 · ITU 7 · map ↗

Nets

Net	When	Frequency	Role	Times	Last
Iowa D-Star Net	Sat 6:30 PM · Sat 6:45 PM · Sat 7:30 PM CT	XLX632 A	Checked in	2	2026-09-27

From nets logged with NetLogger since the start of collection.

Repeaters within 50 miles

61 repeaters within 50 miles of this address, closest first · sort: closest · most active · map these & export for a radio →

● confirmed on the air · ● probably · ● reported off the air · ● unknown · ◉ this license · ring = 50 miles · click a dot for the repeater's page

● confirmed on the air · ● probably · ● reported off the air · no dot = unknown (hover a dot for the evidence)

Miles	Call	Name	Output	Offset	Tone	Mode	Networks	Activity	Location
3.1	KA0TMW	Duluth KA0TMW	147.1800	+0.6	TONE 103.5	FM (analog)		—	Duluth, MN
3.5	W0GKP	Duluth W0GKP	444.1000	+5	TONE 103.5	FM (analog)		—	Duluth, MN
3.6	W0GKP	Duluth W0GKP	146.9400	-0.6	TSQL 103.5	FM (analog)		—	Duluth, MN
3.7	N0BZZ	Duluth N0BZZ	442.8000	+5	none	FM (analog)		—	Duluth, MN
3.8	K0OE	Duluth K0OE BM	902.1000	in 947.1000	CC1	DMR	BrandMeister 311355	—	Duluth, MN
4.0	N0EO	Duluth N0EO	147.3750	+0.6	TSQL 103.5	FM (analog) (DV,FM)		—	Duluth, MN
4.0	N0EO	Duluth N0EO	442.2000	+5	none	D-STAR		—	Duluth, MN
4.0	N0EO	Duluth N0EO AllStar	145.3100	-0.6	TONE 110.9	FM (analog)	AllStar 47024 AllStar 47016	—	Duluth, MN
4.0	N0EO	Duluth N0EO WIRES-X	444.3000	+5	TONE 103.5	FM (analog)	WIRES-X 30494	—	Duluth, MN
4.2	K0OE	Duluth K0OE BM	444.8000	+5	CC1	DMR	BrandMeister 311164	—	Duluth, MN
4.2	N0BZZ	Duluth N0BZZ	223.9400	+1.6	none	FM (analog)		—	Duluth, MN
4.3	K0QF	Duluth K0QF BM	439.9750	in 424.9750	CC1	DMR	BrandMeister 319324301	—	Duluth, MN
4.6	KC0RTX	Duluth KC0RTX	444.2000	+5	TONE 103.5	FM (analog)		—	Duluth, MN
5.0	N0BZZ	Proctor N0BZZ	147.3300	+0.6	TONE 151.4	FM (analog)		—	Proctor, MN
6.3	KC0RTX	Duluth KC0RTX	145.4500	-0.6	TSQL 103.5	FM (analog)		—	Duluth, MN
7.4	KC0IPA	Duluth KC0IPA	147.0600	+0.6	TONE 110.9	FM (analog)		—	Duluth, MN
7.4	KB0QYC	Duluth KB0QYC	927.6000	-25	TONE 114.8	FM (analog)		—	Duluth, MN
7.4	KB0QYC	Duluth KB0QYC	927.4875	-25	TONE 103.5	FM (analog)		—	Duluth, MN
7.4	WA9KLM	Superior Northwe WA9KLM WIRES-X	145.1700	-0.6	TSQL 110.9	FM (analog) (C4FM,FM)	WIRES-X 18373	—	Superior, WI
12.9	KC0HXC	Duluth KC0HXC	145.4100	-0.6	TONE 100.0	FM (analog)		—	Duluth, MN
13.0	N0BZZ	Duluth N0BZZ	53.0500	-1	none	FM (analog)		—	Duluth, MN
14.1	KB0YHX	Cloquet CM Hosp KB0YHX	145.2500	-0.6	none	FM (analog) (C4FM,FM)		—	Cloquet, MN
14.3	WA0GWI	Cloquet WA0GWI	146.6700	-0.6	none	FM (analog)		—	Cloquet, MN
14.4	N0RPW	Cloquet N0RPW	146.6700	-0.6	none	FM (analog)		—	Cloquet, MN
15.8	AA0AC	Cloquet AA0AC AllStar	444.8500	+5	TSQL 141.3	FM (analog)	AllStar 56153	—	Cloquet, MN
21.5	KC0RTX	Knife River KC0RTX	147.1350	+0.6	TSQL 103.5	FM (analog)		—	Knife River, MN
22.1	NA0RC	Knife River NA0RC AllStar	147.1350	+0.6	TSQL 103.5	FM (analog)	AllStar 42251	—	Knife River, MN
24.6	KC0RTX	Carlton KC0RTX	146.7900	-0.6	TSQL 103.5	FM (analog)		—	Carlton, MN
24.7	N0VOW	Holyoke N0VOW	146.8950	-0.6	TSQL 82.5	FM (analog)		—	Holyoke, MN
25.9	N0VOW	Two Harbors N0VOW	146.8500	-0.6	TSQL 151.4	FM (analog)		—	Two Harbors, MN
26.4	KB0QYC	Virginia KB0QYC	53.1500	-0.5	TONE 103.5	FM (analog)		—	Virginia, MN
27.8	N0LCR	Two Harbors N0LCR WIRES-X	444.5000	+5	TSQL 103.5	FM (analog)	WIRES-X 53060	—	Two Harbors, MN
27.8	N0LCR	Two Harbors N0LCR	53.0200	-1	TSQL 103.5	FM (analog)		—	Two Harbors, MN
28.0	KB0TNB	Two Harbors KB0TNB	53.0200	-0.5	TONE 103.5	FM (analog)		—	Two Harbors, MN
28.0	N0BZZ	Mahtowa N0BZZ	53.1700	-1	TSQL 103.5	FM (analog)		—	Mahtowa, MN
28.0	W0GKP	Mahtowa W0GKP	147.0000	-0.6	TSQL 103.5	FM (analog)		—	Mahtowa, MN
28.1	NA0RC	Knife River NA0RC WIRES-X	444.4000	+5	TSQL 103.5	FM (analog)	WIRES-X 11388	—	Knife River, MN
29.0	KC9AEG	Chaffey QTH of KC9AEG	444.9500	+5	TSQL 110.9	FM (analog)		—	Chaffey, WI
29.0	KC9EMI	Chaffey QTH of KC9EMI	147.1050	+0.6	TSQL 110.9	FM (analog)		—	Chaffey, WI
31.4	WA9KLM	Solon Springs WA9KLM	145.4900	-0.6	TSQL 110.9	FM (analog)		—	Solon Springs, WI
31.7	N0EO	Duluth N0EO AllStar	145.4900	-0.6	TONE 110.9	FM (analog)	AllStar 470240	—	Duluth MN, WI
35.9	WB0DGK	Two Harbors WB0DGK	147.2700	+0.6	TONE 103.5	FM (analog)		—	Two Harbors, MN
35.9	N0BZZ	Wales N0BZZ	147.2700	+0.6	TSQL 103.5	FM (analog)		—	Wales, MN
36.3	AA9JL	Solon Springs AA9JL	145.4900	-0.6	TSQL 110.9	FM (analog)		—	Solon Springs, WI
45.3	N0BZZ	Tamarack N0BZZ	443.2000	+5	TSQL 114.8	FM (analog)		—	Tamarack, MN
48.3	NT0B	Gilbert Wtr NT0B	147.1500	+0.6	TONE 151.4	FM (analog) (C4FM,FM,P25)		—	Gilbert, MN
48.3	KB0QYC	Gilbert KB0QYC	443.5000	+5	TONE 141.3	FM (analog)		—	Gilbert, MN
48.6	K5PFF	Gilbert K5PFF	443.5000	+5	TSQL 141.3	FM (analog)		—	Gilbert, MN
48.9	AD0MI	Askov AD0MI	443.4000	+5	DCS 172	FM (analog) (FM,P25)		—	Askov, MN
49.2	W0OJR	Virginia W0OJR	443.7000	+5	TSQL 151.4	FM (analog)		—	Virginia, MN
49.4	KE0UAV	Silica Beauty KE0UAV	443.5500	+5	TONE 192.8	FM (analog) (DV,FM)		—	Silica, MN
49.4	N0BZZ	Aurora N0BZZ	147.2400	+0.6	TONE 156.7	FM (analog)		—	Aurora, MN
49.9	KD0CI	Duxbury KD0CI	146.9100	-0.6	TSQL 146.2	FM (analog)		—	Duxbury, MN
4.5	KB0QYC offline	Duluth KB0QYC	442.8000	+5	none	FM (analog)		—	Duluth, MN
14.2	KB0YHX offline	Cloquet KB0YHX	443.1000	+5	TONE 103.5	FM (analog) (C4FM,FM)		—	Cloquet, MN
22.1	NA0RC offline	Knife River NA0RC	444.2000	+5	TSQL 103.5	FM (analog)		—	Knife River, MN
22.4	AB9AC offline	Foxboro AB9AC BM	444.9000	+5	CC4	DMR	BrandMeister 312762	—	Foxboro, WI
49.2	KB0CIM offline	Virgina KB0CIM	145.1900	-0.6	TSQL 127.3	FM (analog)		—	Virgina, MN
49.2	KB0CIM offline	Virgina KB0CIM	53.1900	-1	TSQL 146.2	FM (analog)		—	Virgina, MN
49.7	K0SLC offline	Virginia K0SLC	146.6850	-0.6	TSQL 151.4	FM (analog)		—	Virginia, MN
49.7	K0SLC offline	Virgina K0SLC	147.3150	+0.6	TSQL 151.4	FM (analog)		—	Virgina, MN

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Dec 17, 2025 Granted Jan 6, 2026 0011834138	KF0IZW · AARON S OSTERWYK · Amateur Extra 4261 TIMBERRIDGE LN APT E, DULUTH, MN 55811-4045 46.8151, -92.1889 (street) · Grid EN36vt · CQ 4 · ITU 7 · map ↗	1.AA0AF ✓ granted	Granted got AA0AF
Filed Nov 26, 2025 Award date was Dec 14, 2025 0011800022	KF0IZW · AARON S OSTERWYK · Amateur Extra 4261 TIMBERRIDGE LN APT E, DULUTH, MN 55811-4045 46.8151, -92.1889 (street) · Grid EN36vt · CQ 4 · ITU 7 · map ↗	1.W0BW held	Dismissed