N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 5, 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

Donald Barker Jr

FRN 0037283579 · first licensed Aug 6, 2025 as KR4FVU · 2 licenses on record

📻 GMRS licenses on this FRN

GMRS call	Status	Name	Location	Granted	Expires
WSJE714	Active	Donald Barker Jr	Mount Pleasant, SC	Jul 18, 2025	Jul 18, 2035

📝 FCC applications (5)

Received	File number	Service	Purpose	Status	Call
Aug 6, 2025	0011681245	HAM	Administrative update	Granted	KR4FVU
Aug 6, 2025	0011681241	GMRS	Administrative update	Granted
Aug 6, 2025	0011681229	HAM	Modification	Granted	KR4FVU
Aug 5, 2025	0011678363	HAM	New license	Granted	KR4FVU
Jul 17, 2025	0011652509	GMRS	New license	Granted

Complete licensing history

K4EDB Active Technician · vanity Aug 26, 2025 → expires Aug 26, 2035

Licensee
Donald Barker Jr

Address
1391 Madison Ct
Mount Pleasant, SC 29466-7961
32.8638, -79.8166 (street) · Grid FM02cu · CQ 5 · ITU 8 · map ↗

FRN
0037283579

Previous call
KR4FVU

Last granted
Aug 26, 2025

Effective
Aug 26, 2025

Last action
Aug 26, 2025
FCC actions (2)
- Aug 26, 2025 — Vanity call sign granted VANGRT
- Aug 26, 2025 — License issued LIISS
KR4FVU Canceled Technician Aug 6, 2025 → Aug 26, 2025 (canceled)

Licensee
Donald Barker Jr

Address
1391 Madison Ct
Mount Pleasant, SC 29466-7961
32.8638, -79.8166 (street) · Grid FM02cu · CQ 5 · ITU 8 · map ↗

FRN
0037283579

Last granted
Aug 6, 2025

Effective
Aug 7, 2025

Last action
Aug 26, 2025
FCC actions (4)
- Aug 26, 2025 — License canceled LICAN
- Aug 7, 2025 — Administrative update LIAUA
- Aug 6, 2025 — License issued LIISS
- Aug 6, 2025 — 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 Sep 25, 2025 → Oct 4, 2026 · 6 snapshots · as KR4FVU
Donald Barker Jr
1391 Madison Ct, Mount Pleasant, SC 29466-7961
32.8638, -79.8166 (street) · Grid FM02cu · CQ 5 · ITU 8 · map ↗

Repeaters within 50 miles

50 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	K4IUG	Mt Pleasant K4IUG NONE-USE-C	443.4500	+5	TSQL 100.0	FM (analog) (DMR,FM)	NONE-USE-CONTACT99	—	Mt Pleasant, SC
7.3	WA4USN	Charleston USS WA4USN	146.7900	-0.6	TONE 123.0	FM (analog)		—	Charleston, SC
8.0	WR4SC	Charleston WR4SC	146.7600	-0.6	TSQL 123.0	FM (analog)	🗓 2 nets	2 nets · 207 check-ins · 97 stations	Charleston, SC
8.0	WR4SC	Charleston WR4SC NC-PRN	442.4625	+5	CC1	DMR	NC-PRN 🗓 2 nets	2 nets · 207 check-ins · 97 stations	Charleston, SC
8.0	KR4CHS	Awendaw KR4CHS	145.1200	-0.6	none	D-STAR	🗓 1 net	1 net	Awendaw, SC
9.3	W4HRS	Charleston MUSC W4HRS IRLP	145.4500	-0.6	TONE 123.0	FM (analog)	IRLP 4557	—	Charleston, SC
9.3	W4HRS	Charleston MUSC W4HRS	444.8250	+5	TONE 123.0	FM (analog)		—	Charleston, SC
9.4	W4HRS	Charleston W4HRS	145.1600	-0.6	none	D-STAR		—	Charleston, SC
9.4	W4HRS	Charleston W4HRS	444.1125	+5	none	D-STAR		—	Charleston, SC
11.3	K4IUG	Charleston K4IUG	224.6600	-1.6	TSQL 210.7	FM (analog)		—	Charleston, SC
11.9	NE2S	Hanahan NE2S BM	439.5000	-5	CC1	DMR	BrandMeister 316694501	—	Hanahan, SC
12.4	K4IUG	West Ashley FS 1 K4IUG	443.3750	+5	TSQL 100.0	FM (analog)		—	West Ashley, SC
12.7	WR4SC	Charleston WR4SC	147.1050	+0.6	TSQL 123.0	FM (analog)	🗓 2 nets	2 nets · 207 check-ins · 97 stations	Charleston, SC
12.7	WR4SC	Florence WR4SC	441.5750	+5	TSQL 91.5	FM (analog)	🗓 2 nets	2 nets · 207 check-ins · 97 stations	Florence, SC
12.7	WR4SC	Charleston WR4SC NC-PRN	443.0375	+5	CC1	DMR	NC-PRN 🗓 2 nets	2 nets · 207 check-ins · 97 stations	Charleston, SC
13.6	W4HRS	Charleston W4HRS	444.7750	+5	TONE 123.0	FM (analog)		—	Charleston, SC
16.7	W4HRS	Nort Trident Hos W4HRS	146.7300	-0.6	TONE 123.0	FM (analog)		—	North Charleston, SC
18.1	KK4B	Cordesville KK4B	145.3500	-0.6	TSQL 162.2	FM (analog)	🗓 2 nets	2 nets · 35 check-ins · 24 stations	Cordesville, SC
19.0	N2OBS	Ladson N2OBS EchoLink	443.7750	+5	TSQL 123.0	FM (analog)	EchoLink 99729	—	Ladson, SC
21.0	W4HRS	Summerville Med W4HRS	146.9850	-0.6	TONE 123.0	FM (analog)		—	Summerville, SC
21.7	WX3C Listed as WX3C UHF	SUMMERVILLE WX3C BM	443.3700	+5	CC7	DMR	BrandMeister 311239	—	SUMMERVILLE, SC
21.7	WX3C	Boynton Beach WX3C BM	902.9875	+25	CC7	DMR	BrandMeister 312098	—	Boynton Beach, FL
21.7	WX3C Listed as WX3C VHF	SUMMERVILLE WX3C BM	147.2500	+0.6	CC7	DMR	BrandMeister 312093	—	SUMMERVILLE, SC
23.2	KX4DOR	Summerville KX4DOR	145.2800	-0.6	none	D-STAR		—	Summerville, SC
23.2	KX4DOR	Summerville KX4DOR	442.8375	+5	none	D-STAR		—	Summerville, SC
23.4	KC4ED	Summerville KC4ED	442.3000	+5	none	FM (analog)		—	Summerville, SC
25.6	W4BRK	Moncks Corner W4BRK	146.6100	-0.6	TSQL 123.0	FM (analog)		—	Moncks Corner, SC
25.6	W4HRS	Moncks Corne EOC W4HRS	145.4900	-0.6	TONE 103.5	FM (analog)		—	Moncks Corner, SC
26.8	N9HQC	Ravenel N9HQC BM	443.9000	+5	TONE 123.0	FM (analog) (DMR,FM)	BrandMeister 314755	—	Ravenel, SC
27.6	WA4NMW	Knightsville WA4NMW	147.2250	+0.6	TSQL 123.0	FM (analog)		—	Knightsville, SC
27.8	WA4USN	Knightsville WA4USN	146.9400	-0.6	TSQL 123.0	FM (analog)		—	Knightsville, SC
27.8	WA4USN	Mount Pleasant WA4USN	441.4500	+5	TSQL 123.0	FM (analog)		—	Mount Pleasant, SC
27.9	WA4USN	Seabrook Island WA4USN	145.4100	-0.6	TONE 123.0	FM (analog)		—	Seabrook Island, SC
30.6	K4IUG	Adams Run K4IUG	147.3450	+0.6	TSQL 141.3	FM (analog)		—	Adams Run, SC
32.5	KX4DOR	Ridgeville KX4DOR	443.8000	+5	CC1	DMR		—	Ridgeville, SC
36.4	W4HNK	Dorchester W4HNK	147.1800	+0.6	TONE 123.0	FM (analog)		—	Dorchester, SC
36.4	W4HNK	Dorchester W4HNK	443.8000	+5	TONE 123.0	FM (analog)		—	Dorchester, SC
36.8	W4ANK	Jedburg W4ANK	147.2700	+0.6	TONE 123.0	FM (analog)		—	Jedburg, SC
37.6	KK4B	Russellville KK4B	147.3000	+0.6	TSQL 162.2	FM (analog)	🗓 2 nets	2 nets · 35 check-ins · 24 stations	Russellville, SC
46.6	WR4SC	Georgetown WR4SC NC-PRN	441.8125	+5	CC1	DMR	NC-PRN 🗓 2 nets	2 nets · 207 check-ins · 97 stations	Georgetown, SC
47.1	W4HRS	Georgetown Hosp W4HRS	146.7000	-0.6	TONE 123.0	FM (analog)		—	Georgetown, SC
47.5	W4APE	Greeleyville W4APE	444.7500	+5	TSQL 123.0	FM (analog)		—	Greeleyville, SC
48.3	KQ4ONE	South Carolina KQ4ONE BM	445.3500	-5	CC1	DMR	BrandMeister 3223563	—	South Carolina, SC
48.8	KA4GDW	Saint George M&M KA4GDW	147.0450	+0.6	TSQL 103.5	FM (analog)		—	Saint George, SC
49.3	WR4SC	Saint George WR4SC NC-PRN	440.6500	+5	CC1	DMR	NC-PRN 🗓 2 nets	2 nets · 207 check-ins · 97 stations	Saint George, SC
49.4	KG4BZN	Walterboro KG4BZN	147.1350	+0.6	none	FM (analog)		—	Walterboro, SC
49.4	KG4BZN	Walterboro KG4BZN	444.5500	+5	TONE 123.0	FM (analog)		—	Walterboro, SC
50.0	W4HRS	Walterboro Colle W4HRS	444.8500	+5	TONE 123.0	FM (analog)		—	Walterboro, SC
2.3	KK4ZBE offline	Mt Pleasant E KK4ZBE	146.6850	-0.6	TSQL 162.2	FM (analog)		—	Mt Pleasant, SC
19.0	N2OBS offline	Ladson N2OBS EchoLink	146.8650	-0.6	TONE 123.0	FM (analog)	EchoLink 99729	—	Ladson, SC

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Aug 6, 2025 Granted Aug 26, 2025 0011681229	KR4FVU · Donald Barker Jr · Technician 1391 Madison Ct, Mount Pleasant, SC 29466-7961 32.8638, -79.8166 (street) · Grid FM02cu · CQ 5 · ITU 8 · map ↗	1.K4BAR held 2.W4DEB held 3.K4EDB ✓ granted 4.N4EDB available	Granted got K4EDB