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

KX4SU HAM

📻
Previously held a GMRS license
WQZK285
Expired Jun 14, 2022 · same FCC Registration Number (FRN) · GMRS covers the licensee's immediate family
Amateur Extra class licensed since 2015 (11 yrs) KX4SU since 2019 · previously KM4KBD North Charleston, SC grid FM02au LoTW user 57 repeaters within 50 mi
🔒 Not available — currently licensed, through Apr 24, 2035. If it isn't renewed, it opens for vanity requests Apr 25, 2037.

📬 QSL: LoTW user · last upload Sep 2, 2026 as previous call KM4KBD · none yet as KX4SU · not eQSL AG · QRZ · HamQTH

Currently held by Stephen R Sampson · 1 holder on record

Current holder: Stephen R Sampson

Held KX4SU Jun 22, 2019 → present · first licensed Apr 24, 2015 as KM4KBD · 2 licenses · FRN 0024544934

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

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KX4SU in the last 24 hours. They show up here within seconds of KX4SU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

57 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)
MilesCallNameOutputOffsetToneModeNetworksActivityLocation
2.3 W4HRS Charleston
W4HRS
 145.1600 -0.6 none D-STAR — Charleston, SC
2.3 W4HRS Charleston
W4HRS
 444.1125 +5 none D-STAR — Charleston, SC
3.8 K4IUG Charleston
K4IUG
 224.6600 -1.6 TSQL 210.7 FM (analog) — Charleston, SC
4.0 NE2S Hanahan
NE2S BM
 439.5000 -5 CC1 DMR BrandMeister 316694501 — Hanahan, SC
4.7 K4IUG West Ashley FS 1
K4IUG
 443.3750 +5 TSQL 100.0 FM (analog) — West Ashley, SC
4.8 WR4SC Charleston
WR4SC
 147.1050 +0.6 TSQL 123.0 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
4.8 WR4SC Florence
WR4SC
 441.5750 +5 TSQL 91.5 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Florence, SC
4.8 WR4SC Charleston
WR4SC NC-PRN
 443.0375 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
5.2 W4HRS Charleston
W4HRS
 444.7750 +5 TONE 123.0 FM (analog) — Charleston, SC
5.7 W4HRS Charleston MUSC
W4HRS IRLP
 145.4500 -0.6 TONE 123.0 FM (analog) IRLP 4557 — Charleston, SC
5.7 W4HRS Charleston MUSC
W4HRS
 444.8250 +5 TONE 123.0 FM (analog) — Charleston, SC
6.4 WA4USN Charleston USS
WA4USN
 146.7900 -0.6 TONE 123.0 FM (analog) — Charleston, SC
8.7 K4IUG Mt Pleasant
K4IUG NONE-USE-C
 443.4500 +5 TSQL 100.0 FM (analog) (DMR,FM) NONE-USE-CONTACT99 — Mt Pleasant, SC
9.6 W4HRS Nort Trident Hos
W4HRS
 146.7300 -0.6 TONE 123.0 FM (analog) — North Charleston, SC
11.5 N2OBS Ladson
N2OBS EchoLink
 443.7750 +5 TSQL 123.0 FM (analog) EchoLink 99729 — Ladson, SC
12.6 W4HRS Summerville Med
W4HRS
 146.9850 -0.6 TONE 123.0 FM (analog) — Summerville, SC
15.3 KX4DOR Summerville
KX4DOR
 145.2800 -0.6 none D-STAR — Summerville, SC
15.3 KX4DOR Summerville
KX4DOR
 442.8375 +5 none D-STAR — Summerville, SC
15.5 WX3C
Listed as WX3C UHF
 SUMMERVILLE
WX3C BM
 443.3700 +5 CC7 DMR BrandMeister 311239 — SUMMERVILLE, SC
15.5 WX3C Boynton Beach
WX3C BM
 902.9875 +25 CC7 DMR BrandMeister 312098 — Boynton Beach, FL
15.5 WX3C
Listed as WX3C VHF
 SUMMERVILLE
WX3C BM
 147.2500 +0.6 CC7 DMR BrandMeister 312093 — SUMMERVILLE, SC
15.8 KC4ED Summerville
KC4ED
 442.3000 +5 none FM (analog) — Summerville, SC
16.8 WR4SC Charleston
WR4SC
 146.7600 -0.6 TSQL 123.0 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
16.8 WR4SC Charleston
WR4SC NC-PRN
 442.4625 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
16.8 KR4CHS Awendaw
KR4CHS
 145.1200 -0.6 none D-STAR 🗓 1 net 1 net Awendaw, SC
17.4 N9HQC Ravenel
N9HQC BM
 443.9000 +5 TONE 123.0 FM (analog) (DMR,FM) BrandMeister 314755 — Ravenel, SC
18.0 KK4B Cordesville
KK4B
 145.3500 -0.6 TSQL 162.2 FM (analog) 🗓 2 nets 2 nets · 35 check-ins · 24 stations Cordesville, SC
19.2 WA4USN Knightsville
WA4USN
 146.9400 -0.6 TSQL 123.0 FM (analog) — Knightsville, SC
19.2 WA4USN Mount Pleasant
WA4USN
 441.4500 +5 TSQL 123.0 FM (analog) — Mount Pleasant, SC
19.3 WA4NMW Knightsville
WA4NMW
 147.2250 +0.6 TSQL 123.0 FM (analog) — Knightsville, SC
21.8 K4IUG Adams Run
K4IUG
 147.3450 +0.6 TSQL 141.3 FM (analog) — Adams Run, SC
22.0 WA4USN Seabrook Island
WA4USN
 145.4100 -0.6 TONE 123.0 FM (analog) — Seabrook Island, SC
23.2 W4BRK Moncks Corner
W4BRK
 146.6100 -0.6 TSQL 123.0 FM (analog) — Moncks Corner, SC
23.4 W4HRS Moncks Corne EOC
W4HRS
 145.4900 -0.6 TONE 103.5 FM (analog) — Moncks Corner, SC
24.7 KX4DOR Ridgeville
KX4DOR
 443.8000 +5 CC1 DMR — Ridgeville, SC
29.0 W4HNK Dorchester
W4HNK
 147.1800 +0.6 TONE 123.0 FM (analog) — Dorchester, SC
29.0 W4HNK Dorchester
W4HNK
 443.8000 +5 TONE 123.0 FM (analog) — Dorchester, SC
29.3 W4ANK Jedburg
W4ANK
 147.2700 +0.6 TONE 123.0 FM (analog) — Jedburg, SC
37.0 KK4B Russellville
KK4B
 147.3000 +0.6 TSQL 162.2 FM (analog) 🗓 2 nets 2 nets · 35 check-ins · 24 stations Russellville, SC
40.0 KG4BZN Walterboro
KG4BZN
 147.1350 +0.6 none FM (analog) — Walterboro, SC
40.0 KG4BZN Walterboro
KG4BZN
 444.5500 +5 TONE 123.0 FM (analog) — Walterboro, SC
40.6 W4HRS Walterboro Colle
W4HRS
 444.8500 +5 TONE 123.0 FM (analog) — Walterboro, SC
40.7 KA4GDW Saint George M&M
KA4GDW
 147.0450 +0.6 TSQL 103.5 FM (analog) — Saint George, SC
41.2 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
42.1 WA4SJS White Hall
WA4SJS
 146.9100 -0.6 TONE 156.7 FM (analog) — White Hall, SC
42.1 WR4SC White Hall
WR4SC NC-PRN
 442.3875 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations White Hall, SC
46.7 W4APE Greeleyville
W4APE
 444.7500 +5 TSQL 123.0 FM (analog) — Greeleyville, SC
47.2 KJ4QLH Vance
KJ4QLH
 146.8050 -0.6 TSQL 156.7 FM (analog) — Vance, SC
47.6 N0VQE Beaufort SC
N0VQE BM
 441.5000 +5 CC1 DMR BrandMeister 311042910 — Beaufort, SC 29907, SC
49.8 W4APE Greeleyville
W4APE EchoLink
 145.2300 -0.6 TONE 123.0 FM (analog) EchoLink 779467 — Greeleyville, SC
50.0 WR4SC Beaufort
WR4SC NC-PRN
 441.9875 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Beaufort, SC
50.0 W4BFT Beaufort
W4BFT
 441.9875 +5 CC? DMR — Beaufort, SC
50.0 N7GZT Vance
N7GZT AllStar
 442.2000 +5 DCS 023 FM (analog) AllStar 637122 AllStar 637121 — Vance, SC
9.0 KK4ZBE offline Mt Pleasant E
KK4ZBE
 146.6850 -0.6 TSQL 162.2 FM (analog) — Mt Pleasant, SC
11.5 N2OBS offline Ladson
N2OBS EchoLink
 146.8650 -0.6 TONE 123.0 FM (analog) EchoLink 99729 — Ladson, SC
42.0 KJ4LNJ offline Green Pond White
KJ4LNJ
 444.0750 +5 none D-STAR — Green Pond, SC
42.1 KJ4LNJ offline Green Pond S.C
KJ4LNJ
 145.4800 -0.6 none D-STAR — Green Pond, SC