N9TPB FCC License Search

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

SEAN D O'Connell

FRN 0017322108 · first licensed Feb 28, 2008 as KJ4CIX · 3 licenses on record

📻 GMRS licenses on this FRN

GMRS call	Status	Name	Location	Granted	Expires
WQID819	Expired	Sean D O'Connell	Charlotte, NC	Jan 15, 2008	Jan 15, 2013

📝 FCC applications (12)

Received	File number	Service	Purpose	Status	Call
Jan 27, 2020	0008956420	HAM	Renewal	Granted	W4SDO
May 1, 2017	0007756822	HAM	Administrative update	Granted	W4SDO
May 19, 2014	0006289578	HAM	Administrative update	Granted	W4SDO
Mar 14, 2011	0004651308	HAM	Administrative update	Granted	W4SDO
Mar 14, 2011	0004650713	HAM	Modification	Granted	W4SDO
Mar 29, 2010	0004189452	HAM	Administrative update	Granted	W4SDO
Mar 8, 2010	0004149839	HAM	Modification	Granted	KJ4COH
Mar 11, 2008	0003358045	HAM	Administrative update	Granted	KJ4COH
Mar 11, 2008	0003358044	GMRS	Administrative update	Granted
Mar 10, 2008	0003353783	HAM	Modification	Granted	KJ4CIX
Feb 28, 2008	0003340505	HAM	New license	Granted	KJ4CIX
Jan 14, 2008	0003285625	GMRS	New license	Granted

Complete licensing history

📦 Moved: Charlotte, NC → Sioux Falls, SD

W4SDO Active Amateur Extra · vanity Mar 26, 2010 → expires Mar 26, 2030

Licensee
SEAN D O'Connell

Address
3916 N. Potsdam Ave. #1143
Sioux Falls, SD 57104-7048
43.5892, -96.6950 (street) · Grid EN13po · CQ 4 · ITU 7 · map ↗

FRN
0017322108

Previous call
KJ4COH (General)

Last granted
Jan 28, 2020

Effective
Jan 28, 2020

Last action
Jan 28, 2020
FCC actions (8)
- Jan 28, 2020 — License renewed LIREN
- May 2, 2017 — Administrative update LIAUA
- May 20, 2014 — Administrative update LIAUA
- Mar 15, 2011 — Administrative update LIAUA
- Mar 14, 2011 — License modified LIMOD
- Mar 30, 2010 — Administrative update LIAUA
- Mar 26, 2010 — Vanity call sign granted VANGRT
- Mar 26, 2010 — License issued LIISS
KJ4COH Canceled General Feb 28, 2008 → Mar 26, 2010 (canceled)

Licensee
SEAN D O'Connell

Address
PO Box 691534
CHARLOTTE, NC 28227-7026
35.1896, -80.6454 (ZIP center) · Grid EM95qe · CQ 5 · ITU 8 · map ↗

FRN
0017322108

Previous call
KJ4CIX (Technician)

Last granted
Feb 28, 2008

Effective
Mar 12, 2008

Last action
Mar 26, 2010
FCC actions (4)
- Mar 26, 2010 — License canceled LICAN
- Mar 12, 2008 — Administrative update LIAUA
- Mar 10, 2008 — Systematic call sign granted SYSGRT
- Mar 10, 2008 — License issued LIISS
KJ4CIX Canceled General Feb 28, 2008 → Mar 10, 2008 (canceled)

Licensee
SEAN D O CONNELL

Address
7513 HANNAH ALEXANDER LANE
CHARLOTTE, NC 28227
35.1896, -80.6454 (ZIP center) · Grid EM95qe · CQ 5 · ITU 8 · map ↗

FRN
0017322108

Last granted
Feb 28, 2008

Effective
Mar 10, 2008

Last action
Mar 10, 2008
FCC actions (3)
- Mar 10, 2008 — License canceled LICAN
- Feb 28, 2008 — License issued LIISS
- Feb 28, 2008 — 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 W4SDO
SEAN D O'Connell
3916 N. Potsdam Ave. #1143, Sioux Falls, SD 57104-7048
43.5892, -96.6950 (street) · Grid EN13po · CQ 4 · ITU 7 · map ↗
Seen May 27, 2010 → Oct 4, 2026 · 58 snapshots · as KJ4COH
SEAN D O'Connell
PO Box 691534
CHARLOTTE, NC 28227-7026
35.1896, -80.6454 (ZIP center) · Grid EM95qe · CQ 5 · ITU 8 · map ↗
Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as KJ4CIX
SEAN D O CONNELL
7513 HANNAH ALEXANDER LANE, CHARLOTTE, NC 28227
35.1896, -80.6454 (ZIP center) · Grid EM95qe · CQ 5 · ITU 8 · map ↗
Seen Mar 28, 2015 → Feb 15, 2017 · 15 snapshots · as W4SDO
SEAN D O'Connell
7427 Matthews-Mint Hill Rd., Suite 105-309, Mint Hill, NC 28227
35.1896, -80.6454 (ZIP center) · Grid EM95qe · CQ 5 · ITU 8 · map ↗

Repeaters within 50 miles

27 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
3.0	KE0WPC	Sioux Falls KE0WPC AllStar	443.8000	+5	DCS 174	FM (analog)	AllStar 632880	—	Sioux Falls, SD
3.0	KD0ZP	Sioux Falls KD0ZP EchoLink	444.9000	+5	TONE 146.2	FM (analog)	EchoLink 74079	—	Sioux Falls, SD
3.8	N0RCY	Sioux Falls SD N0RCY BM	429.0000	-1	CC1	DMR	BrandMeister 3193241	—	Sioux Falls, SD, L0C, SD
3.8	WD0EXR	Sioux Falls WD0EXR BM	443.4000	+5	CC1	DMR	BrandMeister 310165	—	Sioux Falls, SD
4.4	W0ZWY	Sioux Falls W0ZWY	146.8950	-0.6	TONE 146.2	FM (analog)		—	Sioux Falls, SD
4.4	W0ZWY	Sioux Falls W0ZWY	442.7500	+5	none	D-STAR		—	Sioux Falls, SD
4.4	W0FSD	Sioux Falls Menl W0FSD	223.8600	-1.6	TONE 146.2	FM (analog)		—	Sioux Falls, SD
4.4	KD0ZP	Sioux Falls Menl KD0ZP	444.8250	+5	TONE 103.5	FM (analog)		—	Sioux Falls, SD
5.4	KC0RFR	Sioux Falls KC0RFR	443.5000	+5	TONE 88.5	FM (analog) (FM,C4FM)		—	Sioux Falls, SD
5.9	W0ZML	Sioux Falls W0ZML AllStar	443.3000	+5	TONE 146.2	FM (analog) (DMR,FM)	AllStar 631740 BrandMeister 314644	—	Sioux Falls, SD
6.5	N4OGL	Sioux Falls N4OGL BM	446.5000	-5	CC1	DMR	BrandMeister 310677001	—	Sioux Falls, SD
25.2	KD0MC	Luverne KD0MC	147.1050	+0.6	TSQL 141.3	FM (analog)		—	Luverne, MN
27.4	N0JPE	Fairview N0JPE IRLP	146.5600	simplex	TONE 67.0	FM (analog)	IRLP 7449 IRLP 7375	—	Fairview, SD
29.3	W0ZML	Moe W0ZML	443.4000	+5	TSQL 146.2	FM (analog)		—	Moe, SD
34.1	W0DRK	Pipestone W0DRK	147.0750	+0.6	TONE 141.3	FM (analog)		—	Pipestone, MN
34.5	KB0WSV	Colman KB0WSV	443.2250	+5	TONE 146.2	FM (analog)		—	Colman, SD
35.4	KA0VHV	Beresford KA0VHV	147.2400	+0.6	TONE 141.3	FM (analog)		—	Beresford, SD
35.4	WG0F	Madison WG0F	442.7500	+5	none	D-STAR		—	Madison, SD
38.0	W0SD	Salem W0SD IRLP	145.5100	simplex	TONE 146.2	FM (analog)	IRLP 7748	—	Salem, SD
38.0	W0SD	Salem W0SD	442.0750	+5	TONE 103.5	FM (analog)		—	Salem, SD
39.4	W0VHQ	Rock Valley Perk W0VHQ	147.3000	+0.6	TSQL 110.9	FM (analog) (C4FM,FM)		—	Rock Valley, IA
41.3	W0SD	Turkey Ridge W0SD	444.9750	+5	TONE 146.2	FM (analog)		—	Turkey Ridge, SD
41.7	W0SD	Turkey Ridge W0SD	927.6000	-25	TONE 100.0	FM (analog)		—	Turkey Ridge, SD
6.2	W0ZWY offline	Sioux Falls W0ZWY	444.2000	+5	TSQL 82.5	FM (analog) (FM,C4FM)		—	Sioux Falls, SD
9.6	K0LTN offline	Harrisburg McFar K0LTN	442.4000	+5	TONE 225.7	FM (analog)		—	Harrisburg, SD
32.2	K0TGA offline	Flandreau K0TGA	146.9850	-0.6	TONE 146.2	FM (analog)		—	Flandreau, SD
35.3	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 8, 2010 Granted Jan 28, 2020 0004149839	KJ4COH · Sean D O'Connell · General PO Box 691534 · Charlotte, NC 28227-7026 35.1896, -80.6454 (ZIP center) · Grid EM95qe · CQ 5 · ITU 8 · map ↗	1.W4SDO ✓ granted	Granted got W4SDO