N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 9:45 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

MARGARET M COFFMAN

FRN 0022374367 · first licensed Jan 24, 2013 as KF5TNN · 2 licenses on record

📝 FCC applications (5)

Received	File number	Service	Purpose	Status	Call
Mar 29, 2017	0007718376	HAM	Administrative update	Granted	K1MMC
Apr 18, 2016	0007233353	HAM	Administrative update	Granted	K1MMC
Mar 20, 2013	0005698709	HAM	Modification	Granted	KF5TNN
Feb 28, 2013	0005670419	HAM	Modification	Dismissed	KF5TNN
Jan 24, 2013	0005618522	HAM	New license	Granted	KF5TNN

Complete licensing history

📦 Moved: Round Rock, TX → Sioux Falls, SD

K1MMC Expired Technician · vanity Apr 9, 2013 → Apr 9, 2023 (expired)

Licensee
MARGARET M COFFMAN

Address
3916 N Potsdam Ave #4010
Sioux Falls, SD 57104
43.6030, -96.7043 (ZIP center) · Grid EN13po · CQ 4 · ITU 7 · map ↗

FRN
0022374367

Previous call
KF5TNN

Last granted
Apr 9, 2013

Effective
Mar 29, 2017

Last action
Apr 10, 2025
FCC actions (5)
- Apr 10, 2025 — License expired LIEXP
- Mar 29, 2017 — Administrative update LIAUA
- Apr 19, 2016 — Administrative update LIAUA
- Apr 9, 2013 — Vanity call sign granted VANGRT
- Apr 9, 2013 — License issued LIISS
KF5TNN Canceled Technician Jan 24, 2013 → Apr 9, 2013 (canceled)

Licensee
MARGARET M COFFMAN

Address
1002 PARROT TRAIL
ROUND ROCK, TX 78681
30.5418, -97.7166 (ZIP center) · Grid EM10dn · CQ 4 · ITU 7 · map ↗

FRN
0022374367

Last granted
Jan 24, 2013

Effective
Jan 24, 2013

Last action
Apr 9, 2013
FCC actions (3)
- Apr 9, 2013 — License canceled LICAN
- Jan 24, 2013 — License issued LIISS
- Jan 24, 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 May 12, 2017 → Oct 4, 2026 · 21 snapshots · as K1MMC
MARGARET M COFFMAN
3916 N Potsdam Ave #4010, Sioux Falls, SD 57104
43.6030, -96.7043 (ZIP center) · Grid EN13po · CQ 4 · ITU 7 · map ↗
Seen Feb 18, 2013 → Oct 4, 2026 · 55 snapshots · as KF5TNN
MARGARET M COFFMAN
1002 PARROT TRAIL, ROUND ROCK, TX 78681
30.5418, -97.7166 (ZIP center) · Grid EM10dn · CQ 4 · ITU 7 · map ↗
Seen Jun 30, 2016 → Feb 15, 2017 · 5 snapshots · as K1MMC
MARGARET M COFFMAN
312 Stinegate Lane, Dripping Springs, TX 78620
30.2256, -98.1363 (ZIP center) · Grid EM00wf · CQ 4 · ITU 7 · map ↗

Repeaters within 50 miles

27 repeaters within 50 miles of this ZIP code, 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 · center is the ZIP code (approximate) · 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
3.9	KE0WPC	Sioux Falls KE0WPC AllStar	443.8000	+5	DCS 174	FM (analog)	AllStar 632880	—	Sioux Falls, SD
3.9	KD0ZP	Sioux Falls KD0ZP EchoLink	444.9000	+5	TONE 146.2	FM (analog)	EchoLink 74079	—	Sioux Falls, SD
4.5	WD0EXR	Sioux Falls WD0EXR BM	443.4000	+5	CC1	DMR	BrandMeister 310165	—	Sioux Falls, SD
4.5	N0RCY	Sioux Falls SD N0RCY BM	429.0000	-1	CC1	DMR	BrandMeister 3193241	—	Sioux Falls, SD, L0C, SD
5.1	W0FSD	Sioux Falls Menl W0FSD	223.8600	-1.6	TONE 146.2	FM (analog)		—	Sioux Falls, SD
5.1	KD0ZP	Sioux Falls Menl KD0ZP	444.8250	+5	TONE 103.5	FM (analog)		—	Sioux Falls, SD
5.4	W0ZWY	Sioux Falls W0ZWY	146.8950	-0.6	TONE 146.2	FM (analog)		—	Sioux Falls, SD
5.4	W0ZWY	Sioux Falls W0ZWY	442.7500	+5	none	D-STAR		—	Sioux Falls, SD
6.0	KC0RFR	Sioux Falls KC0RFR	443.5000	+5	TONE 88.5	FM (analog) (FM,C4FM)		—	Sioux Falls, SD
6.9	W0ZML	Sioux Falls W0ZML AllStar	443.3000	+5	TONE 146.2	FM (analog) (DMR,FM)	AllStar 631740 BrandMeister 314644	—	Sioux Falls, SD
7.5	N4OGL	Sioux Falls N4OGL BM	446.5000	-5	CC1	DMR	BrandMeister 310677001	—	Sioux Falls, SD
25.5	KD0MC	Luverne KD0MC	147.1050	+0.6	TSQL 141.3	FM (analog)		—	Luverne, MN
28.5	N0JPE	Fairview N0JPE IRLP	146.5600	simplex	TONE 67.0	FM (analog)	IRLP 7449 IRLP 7375	—	Fairview, SD
30.3	W0ZML	Moe W0ZML	443.4000	+5	TSQL 146.2	FM (analog)		—	Moe, SD
33.5	KB0WSV	Colman KB0WSV	443.2250	+5	TONE 146.2	FM (analog)		—	Colman, SD
33.6	W0DRK	Pipestone W0DRK	147.0750	+0.6	TONE 141.3	FM (analog)		—	Pipestone, MN
34.4	WG0F	Madison WG0F	442.7500	+5	none	D-STAR		—	Madison, SD
36.3	KA0VHV	Beresford KA0VHV	147.2400	+0.6	TONE 141.3	FM (analog)		—	Beresford, SD
37.4	W0SD	Salem W0SD IRLP	145.5100	simplex	TONE 146.2	FM (analog)	IRLP 7748	—	Salem, SD
37.4	W0SD	Salem W0SD	442.0750	+5	TONE 103.5	FM (analog)		—	Salem, SD
40.4	W0VHQ	Rock Valley Perk W0VHQ	147.3000	+0.6	TSQL 110.9	FM (analog) (C4FM,FM)		—	Rock Valley, IA
41.5	W0SD	Turkey Ridge W0SD	444.9750	+5	TONE 146.2	FM (analog)		—	Turkey Ridge, SD
41.8	W0SD	Turkey Ridge W0SD	927.6000	-25	TONE 100.0	FM (analog)		—	Turkey Ridge, SD
7.1	W0ZWY offline	Sioux Falls W0ZWY	444.2000	+5	TSQL 82.5	FM (analog) (FM,C4FM)		—	Sioux Falls, SD
10.6	K0LTN offline	Harrisburg McFar K0LTN	442.4000	+5	TONE 225.7	FM (analog)		—	Harrisburg, SD
31.3	K0TGA offline	Flandreau K0TGA	146.9850	-0.6	TONE 146.2	FM (analog)		—	Flandreau, SD
34.2	KB0MRG offline	Madison KB0MRG	440.1750	+5	TONE 131.8	FM (analog)		—	Madison, SD

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Mar 20, 2013 Granted Apr 9, 2013 0005698709	KF5TNN · MARGARET M COFFMAN · Technician 1002 PARROT TRAIL, ROUND ROCK, TX 78681 30.5418, -97.7166 (ZIP center) · Grid EM10dn · CQ 4 · ITU 7 · map ↗	1.K1MMC ✓ granted 2.K2MMC held 3.K0MMC 4.KC1MMC held 5.KD1MMC	Granted got K1MMC
Filed Feb 28, 2013 Award date was Mar 18, 2013 0005670419	KF5TNN · MARGARET M COFFMAN · Technician 1002 PARROT TRAIL, ROUND ROCK, TX 78681 30.5418, -97.7166 (ZIP center) · Grid EM10dn · CQ 4 · ITU 7 · map ↗	1.KL1MMC 2.KL2MMC 3.KL3MMC 4.KL4MMC 5.KL5MMC	Dismissed