N9TPB FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 9:45 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

H Clifton Northum

FRN 0021738372 · first licensed May 3, 2012 as KK4IZC · 2 licenses on record

📝 FCC applications (3)

ReceivedFile numberServicePurposeStatusCall
Jun 29, 20170007837031 HAMModificationGranted KK4IZC
Nov 7, 20130006005960 HAMModificationGranted KK4IZC
May 3, 20120005192112 HAMNew licenseGranted KK4IZC

Complete licensing history

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

Repeaters within 50 miles

65 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
5.0 W4HRS Moncks Corne EOC
W4HRS
 145.4900 -0.6 TONE 103.5 FM (analog) — Moncks Corner, SC
5.3 W4BRK Moncks Corner
W4BRK
 146.6100 -0.6 TSQL 123.0 FM (analog) — Moncks Corner, SC
9.0 KK4B Russellville
KK4B
 147.3000 +0.6 TSQL 162.2 FM (analog) 🗓 2 nets 2 nets · 35 check-ins · 24 stations Russellville, SC
11.2 KK4B Cordesville
KK4B
 145.3500 -0.6 TSQL 162.2 FM (analog) 🗓 2 nets 2 nets · 35 check-ins · 24 stations Cordesville, SC
16.6 WX3C Boynton Beach
WX3C BM
 902.9875 +25 CC7 DMR BrandMeister 312098 — Boynton Beach, FL
16.6 WX3C
Listed as WX3C UHF
 SUMMERVILLE
WX3C BM
 443.3700 +5 CC7 DMR BrandMeister 311239 — SUMMERVILLE, SC
16.7 WX3C
Listed as WX3C VHF
 SUMMERVILLE
WX3C BM
 147.2500 +0.6 CC7 DMR BrandMeister 312093 — SUMMERVILLE, SC
18.6 W4APE Greeleyville
W4APE
 444.7500 +5 TSQL 123.0 FM (analog) — Greeleyville, SC
20.6 KC4ED Summerville
KC4ED
 442.3000 +5 none FM (analog) — Summerville, SC
20.9 W4HRS Nort Trident Hos
W4HRS
 146.7300 -0.6 TONE 123.0 FM (analog) — North Charleston, SC
20.9 N2OBS Ladson
N2OBS EchoLink
 443.7750 +5 TSQL 123.0 FM (analog) EchoLink 99729 — Ladson, SC
21.5 KX4DOR Summerville
KX4DOR
 145.2800 -0.6 none D-STAR — Summerville, SC
21.5 KX4DOR Summerville
KX4DOR
 442.8375 +5 none D-STAR — Summerville, SC
21.7 W4APE Greeleyville
W4APE EchoLink
 145.2300 -0.6 TONE 123.0 FM (analog) EchoLink 779467 — Greeleyville, SC
22.6 KX4DOR Ridgeville
KX4DOR
 443.8000 +5 CC1 DMR — Ridgeville, SC
23.2 W4HNK Dorchester
W4HNK
 147.1800 +0.6 TONE 123.0 FM (analog) — Dorchester, SC
23.2 W4HNK Dorchester
W4HNK
 443.8000 +5 TONE 123.0 FM (analog) — Dorchester, SC
23.3 W4HRS Summerville Med
W4HRS
 146.9850 -0.6 TONE 123.0 FM (analog) — Summerville, SC
23.5 W4ANK Jedburg
W4ANK
 147.2700 +0.6 TONE 123.0 FM (analog) — Jedburg, SC
23.9 WA4NMW Knightsville
WA4NMW
 147.2250 +0.6 TSQL 123.0 FM (analog) — Knightsville, SC
24.8 NE2S Hanahan
NE2S BM
 439.5000 -5 CC1 DMR BrandMeister 316694501 — Hanahan, SC
25.3 WA4USN Knightsville
WA4USN
 146.9400 -0.6 TSQL 123.0 FM (analog) — Knightsville, SC
25.3 WA4USN Mount Pleasant
WA4USN
 441.4500 +5 TSQL 123.0 FM (analog) — Mount Pleasant, SC
28.2 KJ4QLH Vance
KJ4QLH
 146.8050 -0.6 TSQL 156.7 FM (analog) — Vance, SC
28.6 WR4SC Charleston
WR4SC
 146.7600 -0.6 TSQL 123.0 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
28.6 WR4SC Charleston
WR4SC NC-PRN
 442.4625 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
28.6 KR4CHS Awendaw
KR4CHS
 145.1200 -0.6 none D-STAR 🗓 1 net 1 net Awendaw, SC
30.3 W4HRS Charleston
W4HRS
 145.1600 -0.6 none D-STAR — Charleston, SC
30.3 W4HRS Charleston
W4HRS
 444.1125 +5 none D-STAR — Charleston, SC
31.7 K4IUG Charleston
K4IUG
 224.6600 -1.6 TSQL 210.7 FM (analog) — Charleston, SC
31.8 K4IUG Mt Pleasant
K4IUG NONE-USE-C
 443.4500 +5 TSQL 100.0 FM (analog) (DMR,FM) NONE-USE-CONTACT99 — Mt Pleasant, SC
31.9 W4HRS Charleston
W4HRS
 444.7750 +5 TONE 123.0 FM (analog) — Charleston, SC
32.0 KM4ABW Manning Hosp
KM4ABW
 145.1500 -0.6 TSQL 91.5 FM (analog) — Manning, SC
32.2 WR4SC Charleston
WR4SC
 147.1050 +0.6 TSQL 123.0 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
32.2 WR4SC Florence
WR4SC
 441.5750 +5 TSQL 91.5 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Florence, SC
32.2 WR4SC Charleston
WR4SC NC-PRN
 443.0375 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Charleston, SC
32.3 K4IUG West Ashley FS 1
K4IUG
 443.3750 +5 TSQL 100.0 FM (analog) — West Ashley, SC
32.7 N9HQC Ravenel
N9HQC BM
 443.9000 +5 TONE 123.0 FM (analog) (DMR,FM) BrandMeister 314755 — Ravenel, SC
33.1 N7GZT Vance
N7GZT AllStar
 442.2000 +5 DCS 023 FM (analog) AllStar 637122 AllStar 637121 — Vance, SC
33.2 WA4USN Charleston USS
WA4USN
 146.7900 -0.6 TONE 123.0 FM (analog) — Charleston, SC
33.4 W4HRS Charleston MUSC
W4HRS IRLP
 145.4500 -0.6 TONE 123.0 FM (analog) IRLP 4557 — Charleston, SC
33.4 W4HRS Charleston MUSC
W4HRS
 444.8250 +5 TONE 123.0 FM (analog) — Charleston, SC
35.0 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
35.1 KA4GDW Saint George M&M
KA4GDW
 147.0450 +0.6 TSQL 103.5 FM (analog) — Saint George, SC
40.2 WR4SC Georgetown
WR4SC NC-PRN
 441.8125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Georgetown, SC
40.8 W4HRS Georgetown Hosp
W4HRS
 146.7000 -0.6 TONE 123.0 FM (analog) — Georgetown, SC
41.3 KA4GDW Bowman
KA4GDW
 146.8350 -0.6 TSQL 179.9 FM (analog) — Bowman, SC
41.3 KA4GDW Bowman
KA4GDW
 224.7800 -1.6 TSQL 179.9 FM (analog) — Bowman, SC
41.9 NE4SC Georgetown
NE4SC
 147.3750 +0.6 TONE 123.0 FM (analog) — Georgetown, SC
42.6 K4IUG Adams Run
K4IUG
 147.3450 +0.6 TSQL 141.3 FM (analog) — Adams Run, SC
43.7 WR4SC Lake City
WR4SC NC-PRN
 440.6375 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Lake City, SC
45.7 W4GL Sumter
W4GL
 147.0150 +0.6 TSQL 156.7 FM (analog) — Sumter, SC
45.7 WR4SC Sumter
WR4SC NC-PRN
 442.3125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Sumter, SC
46.9 W4HRS Walterboro Colle
W4HRS
 444.8500 +5 TONE 123.0 FM (analog) — Walterboro, SC
47.1 KG4BZN Walterboro
KG4BZN
 147.1350 +0.6 none FM (analog) — Walterboro, SC
47.1 KG4BZN Walterboro
KG4BZN
 444.5500 +5 TONE 123.0 FM (analog) — Walterboro, SC
47.4 W4FTK Sumter
W4FTK AllStar
 443.3000 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Sumter, SC
47.7 K4LMD Branchville
K4LMD
 145.2100 -0.6 TSQL 100.0 FM (analog) — Branchville, SC
48.6 WA4USN Seabrook Island
WA4USN
 145.4100 -0.6 TONE 123.0 FM (analog) — Seabrook Island, SC
49.8 W4GL Sumter Tuomey
W4GL
 146.6400 -0.6 TONE 156.7 FM (analog) — Sumter, SC
49.8 W4GL Sumter WRJA
W4GL
 444.1500 +5 TSQL 123.0 FM (analog) (FM,DV) — Sumter, SC
49.8 WR4SC Sumter
WR4SC
 147.0150 +0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Sumter, SC
20.9 N2OBS offline Ladson
N2OBS EchoLink
 146.8650 -0.6 TONE 123.0 FM (analog) EchoLink 99729 — Ladson, SC
31.3 KK4ZBE offline Mt Pleasant E
KK4ZBE
 146.6850 -0.6 TSQL 162.2 FM (analog) — Mt Pleasant, SC
36.9 NE4SC offline Kingstree
NE4SC
 145.3100 -0.6 TONE 123.0 FM (analog) — Kingstree, SC

Vanity applications

Filed · AwardApplicantRequested (in order)Status
Filed Jun 29, 2017
Granted Jul 18, 2017
0007837031
 KK4IZC · H Clifton Northum · General
102 Waterfront Dr, Moncks Corner, SC 29461
33.2669, -79.9778 (street) · Grid FM03ag · CQ 5 · ITU 8 · map ↗
1.K5HCN ✓ granted
 Granted
got K5HCN