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

FREDRIC C UNDERWOOD

FRN 0003132487 · first licensed Apr 22, 2000 as KC4RAJ · 3 licenses on record

📝 FCC applications (9)

Received	File number	Service	Purpose	Status	Call
Jan 20, 2026	0011872035	HAM	Renewal	Granted	K4NFC
Jun 3, 2015	0006828099	HAM	Modification	Granted	N4DHN
Mar 30, 2015	0006732656	HAM	Modification	Dismissed	N4DHN
Mar 30, 2015	0006732654	HAM	Modification	Dismissed	N4DHN
Oct 2, 2014	0006489151	HAM	Modification	Dismissed	N4DHN
May 2, 2012	0005190672	HAM	Modification	Granted	KC4RAJ
Apr 25, 2012	0005180099	HAM	Modification	Granted	KC4RAJ
Apr 19, 2010	0004217698	HAM	Renewal	Granted	KC4RAJ
Apr 21, 2000	0000114324	HAM	Renewal + modification	Granted	KC4RAJ

Complete licensing history

K4NFC Active General · vanity Jun 23, 2015 → expires Jan 21, 2036

Licensee
FREDRIC C UNDERWOOD

Address
Attn: Fredric C. Underwood
104 TYLER CT
DOTHAN, AL 36303
31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗

FRN
0003132487

Previous call
N4DHN (Technician)

Last granted
Jan 21, 2026

Effective
Jan 21, 2026

Last action
Jan 21, 2026
FCC actions (3)
- Jan 21, 2026 — License renewed LIREN
- Jun 23, 2015 — Vanity call sign granted VANGRT
- Jun 23, 2015 — License issued LIISS
N4DHN Canceled General · vanity May 22, 2012 → Jun 23, 2015 (canceled)

Licensee
FREDRIC C UNDERWOOD

Address
Attn: Fredric C. Underwood
104 TYLER CT
DOTHAN, AL 36303
31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗

FRN
0003132487

Previous call
KC4RAJ (Technician)

Last granted
May 22, 2012

Effective
May 22, 2012

Last action
Jun 23, 2015
FCC actions (3)
- Jun 23, 2015 — License canceled LICAN
- May 22, 2012 — Vanity call sign granted VANGRT
- May 22, 2012 — License issued LIISS
KC4RAJ Canceled General Apr 22, 2000 → May 22, 2012 (canceled)

Licensee
FREDRIC C UNDERWOOD

Address
104 TYLER CT
DOTHAN, AL 36303
31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗

FRN
0003132487

Last granted
Apr 19, 2010

Effective
Apr 25, 2012

Last action
May 22, 2012
FCC actions (4)
- May 22, 2012 — License canceled LICAN
- Apr 25, 2012 — License modified LIMOD
- Apr 19, 2010 — License renewed LIREN
- Apr 22, 2000 — License renewed LIREN

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Nov 7, 2004 → Oct 4, 2026 · 125 snapshots · as KC4RAJ
FREDRIC C UNDERWOOD
104 TYLER CT, DOTHAN, AL 36303
31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗

Repeaters within 50 miles

43 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
0.5	W4DHN	Dothan WOOF W4DHN	145.4300	-0.6	TSQL 186.2	FM (analog)	🗓 1 net	1 net · 53 check-ins · 26 stations	Dothan, AL
0.5	WR4OG	Dothan WR4OG	146.8500	-0.6	TSQL 186.2	FM (analog)		—	Dothan, AL
0.5	KC4JBF	Dothan KC4JBF EchoLink	147.1400	+0.6	TSQL 186.2	FM (analog)	EchoLink 444850	—	Dothan, AL
0.5	WR4OG	Dothan WR4OG	444.6750	+5	TSQL 186.2	FM (analog)		—	Dothan, AL
0.5	W4DHN	Dothan WDHN W4DHN	444.7750	+5	TSQL 186.2	FM (analog)	🗓 1 net	1 net · 53 check-ins · 26 stations	Dothan, AL
0.5	WR4OG	Dothan WR4OG	444.8500	+5	TSQL 186.2	FM (analog)		—	Dothan, AL
0.5	WR4OG	Dothan WR4OG	444.9000	+5	TSQL 186.2	FM (analog)		—	Dothan, AL
8.2	K4AGR	Rehobeth K4AGR AllStar	147.3150	+0.6	TSQL 123.0	FM (analog) (C4FM,FM)	WIRES-X 90261 AllStar 560710	—	Rehobeth, AL
10.3	K4AGR	Dothan K4AGR AllStar	442.6000	+5	TONE 123.0	FM (analog) (FM,P25)	AllStar 560710	—	Dothan, AL
20.1	K2DAL	Daleville K2DAL	146.7000	-0.6	TSQL 186.2	FM (analog)		—	Daleville, AL
20.2	W4DRK	Daleville W4DRK	146.7000	-0.6	TSQL 186.2	FM (analog)		—	Daleville, AL
20.3	KR4FUB	Daleville KR4FUB EchoLink	147.3450	+0.6	TSQL 123.0	FM (analog)	EchoLink 478859	—	Daleville, AL
22.1	KA4AFI	Ozark KA4AFI	146.9800	-0.6	TSQL 186.2	FM (analog)		—	Ozark, AL
22.2	N4OZK	Ozark N4OZK	147.3900	+0.6	TSQL 100.0	FM (analog)		—	Ozark, AL
24.8	N4OZK	Ozark N4OZK	147.0300	+0.6	TSQL 100.0	FM (analog)		—	Ozark, AL
28.5	KD4BWM	Enterprise KD4BWM	145.3900	-0.6	TONE 100.0	FM (analog)		—	Enterprise, AL
28.5	WD4ROJ	Enterprise WD4ROJ	147.2400	+0.6	TSQL 100.0	FM (analog)	🗓 1 net	1 net · 50 check-ins · 22 stations	Enterprise, AL
31.4	W4GEN	Geneva Wtr W4GEN	145.2700	-0.6	TONE 103.5	FM (analog)		—	Geneva, AL
31.6	WO4J	Marianna WO4J	147.0900	+0.6	TONE 67.0	FM (analog)		—	Marianna, FL
32.1	KJ4BDU	Chipley KJ4BDU	443.2000	+5	TONE 103.5	FM (analog)		—	Chipley, FL
32.1	WA4MN	Chipley WA4MN	444.7500	+5	TONE 100.0	FM (analog)		—	Chipley, FL
32.2	W4GEN	Geneva W4GEN	145.1600	-0.6	none	D-STAR		—	Geneva, AL
32.6	W4BKD	Marianna W4BKD	146.6700	-0.6	TSQL 123.0	FM (analog)		—	Marianna, FL
32.6	W4BKD	Marianna W4BKD	444.9500	+5	TSQL 123.0	FM (analog) (C4FM,FM)		—	Marianna, FL
33.0	WX4EC	Marianna WX4EC	147.0450	+0.6	TONE 123.0	FM (analog)		—	Marianna, FL
34.2	WO4J	Marianna WO4J	147.2700	+0.6	TONE 107.2	FM (analog)		—	Marianna, FL
34.7	N4BFS	Bonifay Holmes N4BFS	444.6500	+5	TSQL 100.0	FM (analog) (DMR,FM)		—	Bonifay, FL
34.8	N4LMI	Bonifay N4LMI	145.1100	-0.6	TSQL 100.0	FM (analog)		—	Bonifay, FL
34.8	KF4KQE	Bonifay KF4KQE	146.9100	-0.6	TONE 100.0	FM (analog)		—	Bonifay, FL
34.9	KE4RBL	Marianna KE4RBL BM	433.3750	+5	CC1	DMR	BrandMeister 320483906	—	Marianna, FL, FL
36.9	WA4MN	Chipley WA4MN	147.1950	+0.6	TONE 103.5	FM (analog)		—	Chipley, FL
38.1	N4PTW	Chipley N4PTW	146.6250	-0.6	TSQL 100.0	FM (analog)		—	Chipley, FL
38.4	K4KHV	Chipley K4KHV	146.7600	-0.6	TONE 186.2	FM (analog)		—	Chipley, FL
38.8	W4NQ	Victoria W4NQ AllStar	146.7800	-0.6	TSQL 123.0	FM (analog) (C4FM,FM)	WIRES-X 21568 AllStar 41596	—	Victoria, AL
40.0	WA4MN	Chipley WA4MN	223.8500	-1.6	none	FM (analog)		—	Chipley, FL
43.0	W4NQ	Elba W4NQ AmComm	145.1400	-0.6	CC1	DMR	AmComm	—	Elba, AL
48.0	WB4MIO	Eufaula WB4MIO	444.9250	+5	TONE 151.4	FM (analog)		—	Eufaula, AL
48.5	K4GFD	Chattahoochee K4GFD	444.9750	+5	TSQL 94.8	FM (analog)		—	Chattahoochee, FL
48.8	no call listed Listed as ALRC	Opp-AL Florida	147.2100	+0.6	none	FM (analog)		—	Opp-AL, FL
49.1	NX4DN	Chattahoochee NX4DN NX4DN	441.1375	+5	CC1	DMR	NX4DN	—	Chattahoochee, FL
49.8	AC4QB	Panama City AC4QB	145.3300	-0.6	TSQL 100.0	FM (analog)		—	Panama City, FL
28.5	KJ4OTP offline	Enterprise KJ4OTP	145.1300	-0.6	none	D-STAR		—	Enterprise, AL
28.5	KJ4OTP offline	Enterprise KJ4OTP	442.6500	+5	none	D-STAR		—	Enterprise, AL

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Jun 3, 2015 Granted Jan 21, 2026 0006828099	N4DHN · FREDRIC C UNDERWOOD · General Attn: Fredric C. Underwood · 104 TYLER CT, DOTHAN, AL 36303 31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗	1.K4NFC ✓ granted 2.KG4SLI available 3.N4GFC available	Granted got K4NFC
Filed Mar 30, 2015 Award date was Apr 17, 2015 0006732654	N4DHN · FREDRIC C UNDERWOOD · General Attn: Fredric C. Underwood · 104 TYLER CT, DOTHAN, AL 36303 31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗	1.W4AMO held	Dismissed
Filed Mar 30, 2015 Award date was Apr 17, 2015 0006732656	N4DHN · FREDRIC C UNDERWOOD · General Attn: Fredric C. Underwood · 104 TYLER CT, DOTHAN, AL 36303 31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗	1.W4AMO held 2.N4AXL available 3.N4AVG available 4.W4AFG held 5.N4ARS held	Dismissed
Filed Oct 2, 2014 Award date was Oct 20, 2014 0006489151	N4DHN · FREDRIC C UNDERWOOD · General Attn: Fredric C. Underwood · 104 TYLER CT, DOTHAN, AL 36303 31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗	1.N4AVM available	Dismissed
Filed May 2, 2012 Granted May 22, 2012 0005190672	KC4RAJ · FREDRIC C UNDERWOOD · General Attn: Fredric C. Underwood · 104 TYLER CT, DOTHAN, AL 36303 31.2266, -85.3840 (street) · Grid EM71hf · CQ 4 · ITU 8 · map ↗	1.N4DHN ✓ granted 2.W4DHN held	Granted got N4DHN