N9TPB FCC License Search

🕒 FCC license data updated yesterday 6:02 am CDT (FCC files through Oct 16, 2026) · next update today 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

K4YZT HAM

Amateur Extra class licensed since 1986 (40 yrs) Isle Of Palms, SC Grid FM02dt 43 repeaters within 50 mi

🔒 Not available — currently licensed, through Apr 1, 2036. If it isn't renewed, it opens for vanity requests Apr 2, 2038.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Currently held by ROBERT K SMITH · 1 holder on record

Current holder: ROBERT K SMITH

Held K4YZT Jul 15, 1986 → present · first licensed Jul 15, 1986 as K4YZT · 1 license · FRN 0014495683
📖 In the printed callbooks since 1961 as K4YZT, before the FCC's online records

K4YZT Active Amateur Extra Jul 15, 1986 → expires Apr 1, 2036

Licensee
ROBERT K SMITH

Address
31 Seagrass Ln
Isle of Palms, SC 29451
32.8132, -79.7343 (street) · Grid FM02dt · CQ 5 · ITU 8 · map ↗

FRN
0014495683

Last granted
Jan 17, 2026

Effective
Feb 17, 2026

Last action
Feb 17, 2026
FCC actions (5)
- Feb 17, 2026 — Administrative update LIAUA
- Jan 17, 2026 — License renewed LIREN
- Jan 20, 2016 — License renewed LIREN
- Jan 5, 2006 — License renewed LIREN
- Jan 5, 2006 — FCC action LITIN

Callbook Records, 1993–2003

From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.

Seen Apr 21, 1996 → Apr 17, 2003 · 14 discs
K4YZT · Amateur Extra · issued Apr 1, 1996, expires Apr 1, 2006
ROBERT K. SMITH
3418 VALEWOOD DR, OAKTON, VA 22124
Seen Oct 31, 1994 → Oct 26, 1995 · 3 discs
K4YZT · Amateur Extra · issued Jul 9, 1994, expires Jul 15, 1996
ROBERT K SMITH
3418 VALEWOOD DR, OAKTON, VA 22124
Seen Sep 9, 1993 → May 3, 1994 · 2 discs
K4YZT · Amateur Extra · issued Jul 15, 1986, expires Jul 15, 1996
ROBERT K SMITH
5914 COLFAX AVE, ALEXANDRIA, VA 22311

Address history

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

Seen Sep 27, 2026 → Oct 11, 2026 · 3 snapshots · as K4YZT
ROBERT K SMITH
31 Seagrass Ln, Isle of Palms, SC 29451
32.8132, -79.7343 (street) · Grid FM02dt · CQ 5 · ITU 8 · map ↗
Seen Feb 16, 2016 → Sep 25, 2025 · 27 snapshots · as K4YZT
ROBERT K SMITH
Attn: Robert K. Smith
31 Seagrass Lane, Isle of Palms, SC 29451
32.8280, -79.7505 (ZIP center) · Grid FM02ct · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Jan 14, 2016 · 19 snapshots · as K4YZT
ROBERT K SMITH
3418 VALEWOOD DR, OAKTON, VA 22124
38.8949, -77.3295 (ZIP center) · Grid FM18iv · CQ 5 · ITU 8 · map ↗

K4YZT in the Printed Callbooks, 1909–1997

From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.

1988 → 1994 · 4 editions
K4YZT · class E
Robert K Smith
5914 Colfax Ave, Alexandria, VA 22311
Winter 1988 p.618, Winter 1989 p.625, Winter 1991 p.679, 1994 p.806
1987 · 1 edition
K4YZT · class E
Robert K Smith
5914 Coif" Ave, Alexandria, VA 21311
Winter 1987 p.603
1986 · 1 edition
K4YZT · class E
Robert K Smith
5104 Bellemeade Ln, Alexandria, VA 11311
Winter 1986 p.593
1985 · 1 edition
K4YZT · class E
Robert Ksmith
Sl04 Bellemeade Ln, Almndria, VA 11311
Winter 1985 p.594
1984 · 1 edition
K4YZT · class E
Robert K Smith
19 Bmrly Hills Dr, Newport News Va 2jb0b
Winter 1984 p.592
1983 · 1 edition
K4YZT · class E
Robert K Smith
19 Beverly Hills Dr, Newport News, VA 23606
Winter 1983 p.569
1971 → 1981 · 9 editions
K4YZT · class E
Robert K. Smith
1802 Barbee St, Mc Lean, VA 22101
Winter 1971 p.310, Fall 1971 p.311, Winter 1972 p.313, Winter 1973 p.313, 1974 p.287, Winter 1975 p.311, Winter 1976 p.318, Winter 1979 p.505, 1981 p.467
1970 · 1 edition
K4YZT · class E
Robert K. Smith1 420 Woodroof Rd
Newport News Va
Spring 1970 p.311
1969 · 1 edition
K4YZT · class E
Robert K . S M I T H
4 2 0 Woodroof Rd, Newport News Va
Summer 1969 p.306
1963 → 1966 · 4 editions
K4YZT
Robert Ke Smith
420 Woodroof Rd, Newport .news Va
Summer 1963 p.294, Fall 1964 p.277, Summer 1965 p.283, Spring 1966 p.284
1962 · 1 edition
K4YZT
Juan Ita J
Rudd, 1138 V I V I A N Dr, M O B I L E Ala
Fall 1962 p.282
1961 · 1 edition
K4YZT
Robert K. Smith
420 Woodroof Ro, Newport News Va
Fall 1961 p.292
1961 · 1 edition
K4YZT
Robert K. Smith*420 Woodroof Rd*newport News Va

Spring 1961 p.280
1960 · 1 edition
K4YZT
Robert K
Smith.420 Woodroof Rd, Newport News Va
Winter 1960 p.279
None · 1 edition
K4YZT · class E
Robert K Smith
19 Beverly Hills Dr, Newport News
None p.287

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for K4YZT in the last 24 hours. They show up here within seconds of K4YZT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

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
6.0	K4IUG	Mt Pleasant K4IUG NONE-USE-C	443.4500	+5	TSQL 100.0	FM (analog) (DMR,FM)	NONE-USE-CONTACT99	—	Mt Pleasant, SC
7.9	WR4SC	Charleston WR4SC	146.7600	-0.6	TSQL 123.0	FM (analog)	🗓 2 nets	2 nets · 300 check-ins · 112 stations	Charleston, SC
7.9	WR4SC	Charleston WR4SC NC-PRN	442.4625	+5	CC1	DMR	NC-PRN 🗓 2 nets	2 nets · 300 check-ins · 112 stations	Charleston, SC
8.0	KR4CHS	Awendaw KR4CHS	145.1200	-0.6	none	D-STAR	🗓 1 net	1 net	Awendaw, SC
10.2	WA4USN	Charleston USS WA4USN	146.7900	-0.6	TONE 123.0	FM (analog)		—	Charleston, SC
12.4	W4HRS	Charleston MUSC W4HRS IRLP	145.4500	-0.6	TONE 123.0	FM (analog)	IRLP 4557	—	Charleston, SC
12.4	W4HRS	Charleston MUSC W4HRS	444.8250	+5	TONE 123.0	FM (analog)		—	Charleston, SC
13.9	W4HRS	Charleston W4HRS	145.1600	-0.6	none	D-STAR		—	Charleston, SC
13.9	W4HRS	Charleston W4HRS	444.1125	+5	none	D-STAR		—	Charleston, SC
15.5	K4IUG	Charleston K4IUG	224.6600	-1.6	TSQL 210.7	FM (analog)		—	Charleston, SC
16.4	K4IUG	West Ashley FS 1 K4IUG	443.3750	+5	TSQL 100.0	FM (analog)		—	West Ashley, SC
16.8	WR4SC	Charleston WR4SC	147.1050	+0.6	TSQL 123.0	FM (analog)	🗓 2 nets	2 nets · 300 check-ins · 112 stations	Charleston, SC
16.8	WR4SC	Florence WR4SC	441.5750	+5	TSQL 91.5	FM (analog)	🗓 2 nets	2 nets · 300 check-ins · 112 stations	Florence, SC
16.8	WR4SC	Charleston WR4SC NC-PRN	443.0375	+5	CC1	DMR	NC-PRN 🗓 2 nets	2 nets · 300 check-ins · 112 stations	Charleston, SC
17.6	NE2S	Hanahan NE2S BM	439.5000	-5	CC1	DMR	BrandMeister 316694501	—	Hanahan, SC
17.9	W4HRS	Charleston W4HRS	444.7750	+5	TONE 123.0	FM (analog)		—	Charleston, SC
22.6	W4HRS	Nort Trident Hos W4HRS	146.7300	-0.6	TONE 123.0	FM (analog)		—	North Charleston, SC
23.2	KK4B	Cordesville KK4B	145.3500	-0.6	TSQL 162.2	FM (analog)	🗓 2 nets	2 nets · 47 check-ins · 26 stations	Cordesville, SC
24.8	N2OBS	Ladson N2OBS EchoLink	443.7750	+5	TSQL 123.0	FM (analog)	EchoLink 99729	—	Ladson, SC
26.7	W4HRS	Summerville Med W4HRS	146.9850	-0.6	TONE 123.0	FM (analog)		—	Summerville, SC
27.6	WX3C Listed as WX3C UHF	SUMMERVILLE WX3C BM	443.3700	+5	CC7	DMR	BrandMeister 311239	—	SUMMERVILLE, SC
27.6	WX3C	Boynton Beach WX3C BM	902.9875	+25	CC7	DMR	BrandMeister 312098	—	Boynton Beach, FL
27.6	WX3C Listed as WX3C VHF	SUMMERVILLE WX3C BM	147.2500	+0.6	CC7	DMR	BrandMeister 312093	—	SUMMERVILLE, SC
29.0	KX4DOR	Summerville KX4DOR	145.2800	-0.6	none	D-STAR		—	Summerville, SC
29.0	KX4DOR	Summerville KX4DOR	442.8375	+5	none	D-STAR		—	Summerville, SC
29.3	KC4ED	Summerville KC4ED	442.3000	+5	none	FM (analog)		—	Summerville, SC
29.5	WA4USN	Seabrook Island WA4USN	145.4100	-0.6	TONE 123.0	FM (analog)		—	Seabrook Island, SC
31.0	W4HRS	Moncks Corne EOC W4HRS	145.4900	-0.6	TONE 103.5	FM (analog)		—	Moncks Corner, SC
31.0	W4BRK	Moncks Corner W4BRK	146.6100	-0.6	TSQL 123.0	FM (analog)		—	Moncks Corner, SC
31.9	N9HQC	Ravenel N9HQC BM	443.9000	+5	TONE 123.0	FM (analog) (DMR,FM)	BrandMeister 314755	—	Ravenel, SC
33.4	WA4NMW	Knightsville WA4NMW	147.2250	+0.6	TSQL 123.0	FM (analog)		—	Knightsville, SC
33.5	WA4USN	Knightsville WA4USN	146.9400	-0.6	TSQL 123.0	FM (analog)		—	Knightsville, SC
33.5	WA4USN	Mount Pleasant WA4USN	441.4500	+5	TSQL 123.0	FM (analog)		—	Mount Pleasant, SC
34.3	K4IUG	Adams Run K4IUG	147.3450	+0.6	TSQL 141.3	FM (analog)		—	Adams Run, SC
42.3	KK4B	Russellville KK4B	147.3000	+0.6	TSQL 162.2	FM (analog)	🗓 2 nets	2 nets · 47 check-ins · 26 stations	Russellville, SC
42.3	W4HNK	Dorchester W4HNK	147.1800	+0.6	TONE 123.0	FM (analog)		—	Dorchester, SC
42.3	W4HNK	Dorchester W4HNK	443.8000	+5	TONE 123.0	FM (analog)		—	Dorchester, SC
42.7	W4ANK	Jedburg W4ANK	147.2700	+0.6	TONE 123.0	FM (analog)		—	Jedburg, SC
44.5	KQ4ONE	South Carolina KQ4ONE BM	445.3500	-5	CC1	DMR	BrandMeister 3223563	—	South Carolina, SC
46.5	WR4SC	Georgetown WR4SC NC-PRN	441.8125	+5	CC1	DMR	NC-PRN 🗓 2 nets	2 nets · 300 check-ins · 112 stations	Georgetown, SC
47.0	W4HRS	Georgetown Hosp W4HRS	146.7000	-0.6	TONE 123.0	FM (analog)		—	Georgetown, SC
5.6	KK4ZBE Offline	Mt Pleasant E KK4ZBE	146.6850	-0.6	TSQL 162.2	FM (analog)		—	Mt Pleasant, SC
24.8	N2OBS Offline	Ladson N2OBS EchoLink	146.8650	-0.6	TONE 123.0	FM (analog)	EchoLink 99729	—	Ladson, SC