N9TPB FCC License Search
🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 16, 2026) · next update today 8:30 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)

K4OBT HAM

General class licensed since 1985 (41 yrs) Lugoff, SC Grid EM94pf 78 repeaters within 50 mi
🔒 Not available — currently licensed, through Jan 5, 2035. If it isn't renewed, it opens for vanity requests Jan 6, 2037.

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

Currently held by DWIGHT R HARRELSON · 1 holder on record

Current holder: DWIGHT R HARRELSON

Held K4OBT Mar 19, 1985 → present · first licensed Mar 19, 1985 as K4OBT · 1 license · FRN 0011635638
📖 In the printed callbooks since 1957 as K4OBT, before the FCC's online records

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.
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
K4OBT 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.

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for K4OBT in the last 24 hours. They show up here within seconds of K4OBT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

78 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
1.3 KI4RAX Lugoff
KI4RAX
 146.8200 -0.6 TSQL 91.5 FM (analog) (FM,C4FM) — Lugoff, SC
1.3 KI4RAX Lugoff
KI4RAX
 441.8000 +5 none D-STAR (DV,DMR) — Lugoff, SC
8.7 KI4IVP Elgin
KI4IVP WIRES-X
 147.2400 +0.6 TSQL 103.5 FM (analog) (FM,C4FM) WIRES-X 18449 — Elgin, SC
14.3 W4CAE Fort Jackson
W4CAE
 146.7750 -0.6 TSQL 156.7 FM (analog) 🗓 3 nets 3 nets · 113 check-ins · 46 stations Fort Jackson, SC
16.7 WR4SC Columbia
WR4SC NC-PRN
 442.5125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 300 check-ins · 112 stations Columbia, SC
16.7 WR4SC Columbia
WR4SC
 441.7250 +5 TONE 91.5 FM (analog) 🗓 2 nets 2 nets · 300 check-ins · 112 stations Columbia, SC
17.5 W4FTK Blythewood
W4FTK AllStar
 443.6500 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Blythewood, SC
18.1 KJ4BWK Columbia
KJ4BWK
 442.2000 +5 none D-STAR — Columbia, SC
18.1 KJ4BWK Columbia
KJ4BWK
 1282.2250 +12 none D-STAR — Columbia, SC
23.0 W4GL Wedgefield
W4GL
 145.4300 -0.6 TSQL 156.7 FM (analog) — Wedgefield, SC
24.4 W4GL Sumter
W4GL
 441.9500 +5 none D-STAR — Sumter, SC
25.4 W4FTK Columbia
W4FTK AllStar
 442.8750 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Columbia, SC
25.6 W4CAE Columbia
W4CAE AllStar
 147.3300 +0.6 TSQL 156.7 FM (analog) AllStar 494460 🗓 3 nets 3 nets · 113 check-ins · 46 stations Columbia, SC
25.6 K4HI Columbia
K4HI WIRES-X
 147.3600 +0.6 TSQL 100.0 FM (analog) WIRES-X 64927 — Columbia, SC
25.6 WR4SC Columbia Capital
WR4SC NC-PRN
 440.6125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 300 check-ins · 112 stations Columbia, SC
25.6 K9OH Columbia
K9OH AllStar
 444.8750 +5 TSQL 91.5 FM (analog) AllStar 417861 — Columbia, SC
25.9 W4FTK Wedgefield
W4FTK AllStar
 147.0600 +0.6 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Wedgefield, SC
27.2 W4DZF Columbia St
W4DZF
 145.2700 -0.6 DCS 632 FM (analog) — Columbia, SC
27.5 WR4SC Sumter
WR4SC
 147.0150 +0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 300 check-ins · 112 stations Sumter, SC
27.5 W4GL Sumter Tuomey
W4GL
 146.6400 -0.6 TONE 156.7 FM (analog) — Sumter, SC
27.5 W4GL Sumter WRJA
W4GL
 444.1500 +5 TSQL 123.0 FM (analog) (FM,DV) — Sumter, SC
27.9 W4EAE Cayce
W4EAE
 433.1000 +5 CC1 DMR — Cayce, SC
27.9 W4EAE Cayce
W4EAE
 443.1000 +5 none D-STAR (DMR,DV) — Cayce, SC
30.6 W4FTK Sumter
W4FTK AllStar
 443.3000 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Sumter, SC
32.2 no call listed Florence
AllStar
 29.6000 simplex CC0 DMR AllStar 29419 EchoLink 41809 AllStar 49643 — Florence, SC
32.2 KA3KDL Hartsville
KA3KDL AllStar
 146.6250 -0.6 TSQL 114.8 FM (analog) AllStar 29419 EchoLink 41809 — Hartsville, SC
32.3 W4GL Sumter
W4GL
 147.0150 +0.6 TSQL 156.7 FM (analog) — Sumter, SC
32.3 WR4SC Sumter
WR4SC NC-PRN
 442.3125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 300 check-ins · 112 stations Sumter, SC
33.6 W4ULH Hartsville Carol
W4ULH
 442.3500 +5 TONE 162.2 FM (analog) — Hartsville, SC
35.1 KC4IRA Lancaster Medica
KC4IRA
 444.6250 +5 Fusion (C4FM) — Lancaster, SC
35.6 W4PAX Lancaster
W4PAX
 146.7000 -0.6 TSQL 123.0 FM (analog) — Lancaster, SC
35.6 W4PAX Lancaster
W4PAX
 444.1000 +5 TONE 192.8 FM (analog) — Lancaster, SC
36.7 N7GZT Saint Hemlock rd
N7GZT AllStar
 442.7750 +5 TSQL 156.7 FM (analog) AllStar 637120 — Saint Matthews, SC
37.4 KJ4BWK Saint Matthews
KJ4BWK
 145.4000 -0.6 none D-STAR — Saint Matthews, SC
38.3 AD4U Saint Matthews
AD4U
 146.6700 -0.6 TSQL 156.7 FM (analog) — Saint Matthews, SC
38.3 N7GZT Saint Matthews
N7GZT
 53.2100 -1 none FM (analog) — Saint Matthews, SC
38.6 W4PSC Leslie
W4PSC
 444.7250 +5 DCS 156 FM (analog) 🗓 1 net 1 net · 29 check-ins · 9 stations Leslie, SC
39.7 W4APE Pageland
W4APE EchoLink
 146.8950 -0.6 TONE 123.0 FM (analog) EchoLink 779467 — Pageland, SC
39.8 WR4SC Little Mountain
WR4SC NC-PRN
 443.5375 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 300 check-ins · 112 stations Little Mountain, SC
39.8 K4LLE Lexington S
K4LLE
 147.0000 +0.6 TSQL 123.0 FM (analog) (FM,P25) 🗓 3 nets 3 nets · 102 check-ins · 31 stations Lexington, SC
40.1 W4FTK Richburg
W4FTK AllStar
 146.7600 -0.6 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Richburg, SC
41.8 W4FTK Pageland
W4FTK AllStar
 441.8250 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Pageland, SC
42.1 W4FTK Little Mountain
W4FTK AllStar
 146.6250 -0.6 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Little Mountain, SC
42.2 W4FTK Little Mt
W4FTK AllStar
 443.8750 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 762 check-ins · 290 stations Little Mt, SC
42.5 WR4SC Little Mountain
WR4SC
 147.2100 +0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 300 check-ins · 112 stations Little Mountain, SC
42.5 N4UHF Little Mountain
N4UHF
 444.6500 +5 CC0 DMR — Little Mountain, SC
43.9 KW4BET Chester Near
KW4BET XLX056
 442.4750 +5 DCS 023 FM (analog) (DMR,FM) AllStar 474346 EchoLink 442475 IRLP 7609 WIRES-X 36034 AllStar 474345 XLX056 🗓 1 net 1 net · 51 check-ins · 50 stations Chester, SC
44.0 W4CHR Chester Near
W4CHR AllStar
 145.3100 -0.6 DCS 145 FM (analog) AllStar 530447 EchoLink 307645 — Chester, SC
44.3 KQ4MKW Darlington S Ca
KQ4MKW BM
 445.5125 -5 CC1 DMR BrandMeister 321045702 — Darlington, South Ca, SC
44.7 KM4ABW Manning Hosp
KM4ABW
 145.1500 -0.6 TSQL 91.5 FM (analog) — Manning, SC
44.8 WD4KFD Florence I-95/Rt
WD4KFD
 442.5250 +5 TONE 210.7 FM (analog) — Florence, SC
44.8 KQ4NOR Glymphville
KQ4NOR AllStar
 146.9550 simplex TONE 186.2 FM (analog) AllStar 66357 — Glymphville, SC
45.2 K4WBT Waxhaw JAARS Ctr
K4WBT
 444.5250 +5 TONE 94.8 FM (analog) — Waxhaw, NC
45.4 K4WBT Waxhaw
K4WBT EchoLink
 146.8650 +0.6 TONE 94.8 FM (analog) (C4FM,FM) EchoLink 84335 — Waxhaw, NC
46.1 WR4SC Chester
WR4SC
 440.5750 +5 CC1 DMR 🗓 2 nets 2 nets · 300 check-ins · 112 stations Chester SC, SC
46.8 KW4BET Chester
KW4BET AllStar
 445.9375 simplex TONE 67.0 FM (analog) AllStar 474340 🗓 1 net 1 net · 51 check-ins · 50 stations Chester, SC
46.8 KW4BET Chester NLF Dept
KW4BET AllStar
 52.5700 simplex TONE 67.0 FM (analog) AllStar 474346 EchoLink 442475 IRLP 7609 WIRES-X 46034 AllStar 474344 🗓 1 net 1 net · 51 check-ins · 50 stations Chester, SC
46.8 KW4BET Chester
KW4BET IRLP
 446.0250 simplex TSQL 77.0 FM (analog) IRLP 4481 🗓 1 net 1 net · 51 check-ins · 50 stations Chester, SC
46.8 KW4BET Lewis
KW4BET AllStar
 146.5350 simplex TONE 77.0 FM (analog) AllStar 474349 🗓 1 net 1 net · 51 check-ins · 50 stations Lewis, SC
46.9 KW4BET Lewis
KW4BET AllStar
 442.1750 +5 none FM (analog) AllStar 530449 🗓 1 net 1 net · 51 check-ins · 50 stations Lewis SC, SC
47.0 KJ4QLH Orangeburg /Calh
KJ4QLH
 147.3900 +0.6 TSQL 156.7 FM (analog) — Orangeburg, SC
47.1 WR4SC Orangeburg
WR4SC
 146.8800 -0.6 TSQL 123.0 FM (analog) 🗓 2 nets 2 nets · 300 check-ins · 112 stations Orangeburg, SC
47.1 WR4SC Orangeburg
WR4SC NC-PRN
 440.5875 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 300 check-ins · 112 stations Orangeburg, SC
47.1 WR4SC Orangeburg
WR4SC
 441.7500 +5 TONE 123.0 FM (analog) 🗓 2 nets 2 nets · 300 check-ins · 112 stations Orangeburg, SC
47.6 KQ4MVG Timmonsville
KQ4MVG
 147.3150 +0.6 TSQL 77.0 FM (analog) — Timmonsville, SC
47.7 K4YTZ Rock Hill
K4YTZ AllStar
 147.0300 -0.6 TSQL 88.5 FM (analog) AllStar 54226 EchoLink 418325 — Rock Hill, SC
47.7 WR4SC Rock Hill
WR4SC NC-PRN
 440.5125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 300 check-ins · 112 stations Rock Hill, SC
47.8 KJ4OEF Darlington
KJ4OEF
 444.6000 +5 TONE 162.2 FM (analog) — Darlington, SC
48.4 N5CWH Gilbert
N5CWH
 146.6550 -0.6 TSQL 156.7 FM (analog) — Gilbert, SC
48.4 KC4GYM Gilbert
KC4GYM IRLP
 224.5600 -1.6 TSQL 162.2 FM (analog) IRLP 4109 — Gilbert, SC
48.7 KB4RRC Florence
KB4RRC
 147.2550 +0.6 TSQL 162.2 FM (analog) — Florence, SC
48.7 KB4RRC Darlington FDTC
KB4RRC
 444.8000 +5 TSQL 91.5 FM (analog) — Darlington, SC
49.0 W4APE Florence
W4APE EchoLink
 147.1950 +0.6 TONE 123.0 FM (analog) EchoLink 779467 — Florence, SC
19.7 W4APE Offline Lucknow
W4APE EchoLink
 146.9250 -0.6 TONE 123.0 FM (analog) EchoLink 779467 — Lucknow, SC
25.6 N4EOY Offline Columbia
N4EOY
 224.9000 -1.6 none FM (analog) — Columbia, SC
28.9 W4EAE Offline Cayce
W4EAE IRLP
 147.5100 simplex TSQL 131.8 FM (analog) IRLP 8255 — Cayce, SC
34.9 KG4GKY Offline West Columbia
KG4GKY IRLP
 446.8750 simplex TSQL 79.7 FM (analog) IRLP 4045 — West Columbia, SC
39.7 W4JMY Offline Pageland
W4JMY
 53.3700 -1 TONE 100.0 FM (analog) — Pageland, SC