N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CST (FCC files through Nov 2, 2026) · next update tomorrow 6:00 am CST

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)

Mark S Strothmann Sr.

FRN 0022596241 · first licensed Apr 8, 2013 as KC9YRX · 2 licenses on record

📻 GMRS Licenses on This FRN

GMRS call	Status	Name	Location	Granted	Expires
WRWC215	Active	Mark Strothmann Sr	Wauwatosa, WI	Feb 4, 2023	Feb 4, 2033
WQTQ572	Expired	Mark S Strothmann Sr	Wauwatosa, WI	Mar 25, 2014	Mar 25, 2019

📝 FCC Applications (7)

Received	File number	Service	Purpose	Status	Call
Feb 3, 2023	0010404235	GMRS	New license	Dismissed
Feb 2, 2023	0010403039	GMRS	New license	Granted
Aug 28, 2020	0009203273	HAM	Administrative update	Granted	KC9WI
Apr 9, 2020	0009039753	HAM	Modification	Granted	KC9YRX
Apr 3, 2020	0009033080	HAM	Modification	Granted	KC9YRX
Mar 24, 2014	0006211216	GMRS	New license	Granted
Apr 8, 2013	0005725488	HAM	New license	Granted	KC9YRX

Complete Licensing History

📦 Moved: Wauwatosa, WI → Three Lakes, WI

KC9WI Active Amateur Extra · vanity Apr 28, 2020 → expires Apr 28, 2030

Licensee
Mark S Strothmann Sr.

Address
Attn: Mark Strothmann
7079 Chicken in the Woods Road
Three Lakes, WI 54562
45.7992, -89.0863 (street) · Grid EN55kt · CQ 4 · ITU 8 · map ↗

FRN
0022596241

Previous call
KC9YRX (General)

Last granted
Apr 28, 2020

Effective
Aug 29, 2020

Last action
Aug 29, 2020
FCC actions (3)
- Aug 29, 2020 — Administrative update LIAUA
- Apr 28, 2020 — Vanity call sign granted VANGRT
- Apr 28, 2020 — License issued LIISS
KC9YRX Canceled Amateur Extra Apr 8, 2013 → Apr 28, 2020 (canceled)

Licensee
Mark S Strothmann Sr

Address
8106 Milwaukee Avenue
Wauwatosa, WI 53213
43.0488, -88.0018 (ZIP center) · Grid EN53xb · CQ 4 · ITU 8 · map ↗

FRN
0022596241

Last granted
Apr 8, 2013

Effective
Apr 3, 2020

Last action
Apr 28, 2020
FCC actions (4)
- Apr 28, 2020 — License canceled LICAN
- Apr 3, 2020 — License modified LIMOD
- Apr 8, 2013 — License issued LIISS
- Apr 8, 2013 — 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 16, 2022 → Nov 1, 2026 · 17 snapshots · as KC9WI
Mark S Strothmann Sr.
Attn: Mark Strothmann
7079 Chicken in the Woods Road, Three Lakes, WI 54562
45.7992, -89.0863 (street) · Grid EN55kt · CQ 4 · ITU 8 · map ↗
Seen Oct 22, 2013 → Nov 1, 2026 · 43 snapshots · as KC9YRX
Mark S Strothmann Sr
8106 Milwaukee Avenue, Wauwatosa, WI 53213
43.0488, -88.0018 (ZIP center) · Grid EN53xb · CQ 4 · ITU 8 · map ↗

Repeaters within 50 Miles

33 repeaters within 50 miles of this address, most active 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
11.6	KD9PT	Eagle River KD9PT	145.4500	-0.6	TONE 114.8	FM (analog) (FM,C4FM)		—	Eagle River, WI
11.9	W9VRC	Eagle River W9VRC EchoLink	145.1500	-0.6	TSQL 114.8	FM (analog) (C4FM,FM)	EchoLink 691369	—	Eagle River, WI
17.5	KC9HBX	Rhinelander KC9HBX EchoLink	146.9400	-0.6	TSQL 114.8	FM (analog)	EchoLink 452874	—	Rhinelander, WI
25.5	KD9JHE	Sayner KD9JHE	444.4000	+5	none	D-STAR		—	Sayner, WI
25.5	N8LVQ	Iron River Ski N8LVQ EchoLink	145.1700	-0.6	TSQL 107.2	FM (analog) (FM,C4FM)	EchoLink 90611 WIRES-X 65384	—	Iron River, MI
25.5	N8LVQ	Iron River Ski N8LVQ AllStar	444.1750	+5	TONE 107.2	FM (analog)	AllStar 640990	—	Iron River, MI
26.3	W9VRC	Land O Lakes W9VRC	145.3900	-0.6	TSQL 114.8	FM (analog) (FM,C4FM)		—	Land O Lakes, WI
27.9	KB9VMC	Sayner KB9VMC WIN	147.3600	+0.6	none	D-STAR	WIN	—	Sayner, WI
28.0	KD9JHE	Sayner KD9JHE	147.3600	+0.6	none	D-STAR		—	Sayner, WI
28.0	WI9WIN	Sayner WI9WIN	444.4000	+5	TSQL 114.8	FM (analog)		—	Sayner, WI
28.0	WE9COM	Sayner WE9COM	145.1300	-0.6	TSQL 114.8	FM (analog)		—	Sayner, WI
29.3	W8YNY	Gaastra W8YNY AllStar	145.1700	-0.6	DG-ID 00-00	Fusion (C4FM)	WIRES-X 55384 AllStar 640991	—	Gaastra, MI
30.6	W9RRA	Hazelhurst W9RRA IRLP	147.1950	+0.6	TSQL 114.8	FM (analog) (DV,FM)	IRLP 4195	—	Hazelhurst, WI
31.2	KC9JCH	Arbor Vitae KC9JCH WIRES-X	146.3550	+0.6	TONE 114.8	FM (analog) (FM,C4FM)	WIRES-X 58978	—	Arbor Vitae, WI
31.3	KC9JCH	Arbor Vitae KC9JCH WIRES-X	443.2500	+5	TSQL 88.5	FM (analog) (C4FM,FM)	WIRES-X 21667	—	Arbor Vitae, WI
32.7	N9TRA	Tomahawk N9TRA	145.4300	-0.6	TSQL 114.8	FM (analog) (FM,P25)		—	Tomahawk, WI
32.7	N9TRA	Tomahawk N9TRA	444.5750	+5	TSQL 114.8	FM (analog)		—	Tomahawk, WI
37.1	W9BTN	Lac Du Flambeau W9BTN	146.7000	-0.6	TONE 114.8	FM (analog)		—	Lac Du Flambeau, WI
39.5	W9SM	Antigo W9SM	147.2550	+0.6	TSQL 114.8	FM (analog)		—	Antigo, WI
39.8	AA9JR	Townsend AA9JR AllStar	443.9500	+5	TSQL 114.8	FM (analog) (DMR,FM)	AllStar 505080 BrandMeister 311630	—	Townsend, WI
41.3	WE9COM	Irma WE9COM	146.8950	-0.6	TSQL 114.8	FM (analog)		—	Irma, WI
41.4	KC9NW	Irma KC9NW	146.9700	-0.6	TSQL 71.9	FM (analog)		—	Irma, WI
41.5	N8LVQ	Cryst Courthouse N8LVQ WIRES-X	145.2300	-0.6	TSQL 107.2	FM (analog) (FM,C4FM)	WIRES-X 90654	—	Crystal Falls, MI
41.9	KD9LUJ	Crystal Falls KD9LUJ BM	434.3500	+5	CC9	DMR	BrandMeister 310386	—	Crystal Falls, MI
42.3	KB9QJN	Irma KB9QJN AllStar	146.6400	-0.6	TSQL 114.8	FM (analog) (FM,P25)	EchoLink 364965 IRLP 4618 AllStar 641492	—	Irma, WI
42.3	KB9QJN	Irma KB9QJN AllStar	442.7750	+5	TSQL 114.8	FM (analog)	AllStar 641493	—	Irma, WI
42.3	N9MEA	Irma N9MEA	52.8300	in 51.1300	TSQL 114.8	FM (analog)		—	Irma, WI
43.7	KC9HBX	Tripoli KC9HBX EchoLink	147.1200	+0.6	TSQL 114.8	FM (analog)	EchoLink 452874	—	Tripoli, WI
44.2	KB9WCK	Land O' Lakes KB9WCK WIRES-X	145.3900	-0.6	TONE 114.8	FM (analog)	WIRES-X 80110	—	Land O' Lakes, WI
44.4	N9TEV	Antigo N9TEV	147.3150	+0.6	TSQL 114.8	FM (analog)		—	Antigo, WI
48.2	W9SM	Antigo W9SM	145.3100	-0.6	TSQL 114.8	FM (analog)		—	Antigo, WI
48.4	KC8VC	Kingsford Iron KC8VC	146.8500	-0.6	TSQL 110.9	FM (analog) (FM,C4FM)		—	Kingsford, MI
48.4	KC8VC	Iron Mountain KC8VC	444.8500	+5	TONE 100.0	FM (analog)		—	Iron Mountain, MI

Vanity Applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Apr 9, 2020 Granted Apr 28, 2020 0009039753	KC9YRX · Mark S Strothmann Sr · Amateur Extra 8106 Milwaukee Avenue, Wauwatosa, WI 53213 43.0488, -88.0018 (ZIP center) · Grid EN53xb · CQ 4 · ITU 8 · map ↗	1.KC9WI ✓ Granted	Granted got KC9WI