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

K4GSU HAM

General class licensed since 2004 (22 yrs) K4GSU since 2011 · previously KE4PBD Chapin, SC grid EM94ie 70 repeaters within 50 mi
🔒 Not available — currently licensed, through Oct 18, 2031. If it isn't renewed, it opens for vanity requests Oct 19, 2033.

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

📝 K4GSU has filed vanity applications before — latest filed Sep 29, 2011 · what was requested

Currently held by Jeffery S Blackmon · 2 holders on record

Current holder: Jeffery S Blackmon

Held K4GSU Oct 18, 2011 → present · first licensed Dec 9, 2004 as KE4PBD · 2 licenses · FRN 0012276507

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

Previous holder: R MITCHELL BUSH

Held K4GSU Oct 5, 1998 → Oct 5, 2008 · first licensed Oct 5, 1998 as K4GSU · 2 licenses · FRN 0009686775

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

Vanity applications filed by K4GSU

Calls this licensee has asked the FCC for, newest first, in their order of preference. The FCC processes applications 18 days after filing; "likely award" is our estimate from every pending application in filing order.

Filed · AwardApplicantRequested (in order)Status
Filed Sep 29, 2011
Granted Aug 3, 2021
0004892749
 KE4PBD · JEFFERY S BLACKMON · Technician
48 Teaberry Dr, Chepachet, RI 02814
41.8958, -71.7052 (ZIP center) · Grid FN41dv · CQ 5 · ITU 8 · map ↗
1.K4GSU ✓ granted
2.K4DOA held
3.K4RIG held
 Granted
got K4GSU

Others requesting K4GSU

1 application listed K4GSU as a choice, newest first.

FiledAwardApplicantChoice #Status
Sep 29, 2011 Oct 17, 2011 KE4PBD · JEFFERY S BLACKMON · Chepachet, RI 1Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K4GSU in the last 24 hours. They show up here within seconds of K4GSU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

70 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
5.3 WR4SC Little Mountain
WR4SC NC-PRN
 443.5375 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Little Mountain, SC
7.6 W4FTK Little Mountain
W4FTK AllStar
 146.6250 -0.6 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Little Mountain, SC
7.7 W4FTK Little Mt
W4FTK AllStar
 443.8750 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Little Mt, SC
8.1 WR4SC Little Mountain
WR4SC
 147.2100 +0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Little Mountain, SC
8.1 N4UHF Little Mountain
N4UHF
 444.6500 +5 CC0 DMR — Little Mountain, SC
12.4 W4DZF Columbia St
W4DZF
 145.2700 -0.6 DCS 632 FM (analog) — Columbia, SC
13.7 K4LLE Lexington S
K4LLE
 147.0000 +0.6 TSQL 123.0 FM (analog) (FM,P25) 🗓 2 nets 2 nets · 70 check-ins · 30 stations Lexington, SC
17.3 W4FTK Blythewood
W4FTK AllStar
 443.6500 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Blythewood, SC
17.5 KQ4NOR Glymphville
KQ4NOR AllStar
 146.9550 simplex TONE 186.2 FM (analog) AllStar 66357 — Glymphville, SC
17.9 W4FTK Columbia
W4FTK AllStar
 442.8750 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Columbia, SC
18.1 W4CAE Columbia
W4CAE AllStar
 147.3300 +0.6 TSQL 156.7 FM (analog) AllStar 494460 🗓 2 nets 2 nets · 93 check-ins · 43 stations Columbia, SC
18.1 K4HI Columbia
K4HI WIRES-X
 147.3600 +0.6 TSQL 100.0 FM (analog) WIRES-X 64927 — Columbia, SC
18.1 WR4SC Columbia Capital
WR4SC NC-PRN
 440.6125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Columbia, SC
18.1 K9OH Columbia
K9OH AllStar
 444.8750 +5 TSQL 91.5 FM (analog) AllStar 417861 — Columbia, SC
19.6 WR4SC Columbia
WR4SC NC-PRN
 442.5125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Columbia, SC
19.6 WR4SC Columbia
WR4SC
 441.7250 +5 TONE 91.5 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Columbia, SC
20.3 W4EAE Cayce
W4EAE
 433.1000 +5 CC1 DMR — Cayce, SC
20.3 W4EAE Cayce
W4EAE
 443.1000 +5 none D-STAR (DMR,DV) — Cayce, SC
21.9 N5CWH Gilbert
N5CWH
 146.6550 -0.6 TSQL 156.7 FM (analog) — Gilbert, SC
21.9 KC4GYM Gilbert
KC4GYM IRLP
 224.5600 -1.6 TSQL 162.2 FM (analog) IRLP 4109 — Gilbert, SC
22.3 KG4UAL Leesville
KG4UAL AllStar
 444.4000 +5 DCS 315 FM (analog) AllStar 558721 — Leesville, SC
22.9 KJ4BWK Columbia
KJ4BWK
 442.2000 +5 none D-STAR — Columbia, SC
22.9 KJ4BWK Columbia
KJ4BWK
 1282.2250 +12 none D-STAR — Columbia, SC
23.1 W4RRC Leesville
W4RRC AllStar
 147.2550 +0.6 TONE 123.0 FM (analog) AllStar 50790 🗓 1 net 1 net · 10 check-ins · 10 stations Leesville, SC
26.5 W4CAE Fort Jackson
W4CAE
 146.7750 -0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 93 check-ins · 43 stations Fort Jackson, SC
26.7 KI4IVP Elgin
KI4IVP WIRES-X
 147.2400 +0.6 TSQL 103.5 FM (analog) (FM,C4FM) WIRES-X 18449 — Elgin, SC
29.4 W4FTK Saluda Sheriffs
W4FTK AllStar
 147.7500 -0.6 TONE 123.0 FM (analog) AllStar EchoLink 🗓 2 nets 2 nets · 540 check-ins · 248 stations Saluda, SC
29.8 KF4NQN Monettta
KF4NQN AllStar
 446.6000 -5 TONE 156.7 FM (analog) AllStar 28575 — Monettta, SC
31.9 AF4E Saluda Wtr Tank
AF4E AllStar
 146.9100 -0.6 TSQL 123.0 FM (analog) AllStar 458591 — Saluda, SC
33.4 KI4RAX Lugoff
KI4RAX
 146.8200 -0.6 TSQL 91.5 FM (analog) (FM,C4FM) — Lugoff, SC
33.4 KI4RAX Lugoff
KI4RAX
 441.8000 +5 none D-STAR (DV,DMR) — Lugoff, SC
36.0 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 Chester, SC
36.0 W4CHR Chester Near
W4CHR AllStar
 145.3100 -0.6 DCS 145 FM (analog) AllStar 530447 EchoLink 307645 — Chester, SC
36.9 WR4SC Chester
WR4SC
 440.5750 +5 CC1 DMR 🗓 2 nets 2 nets · 207 check-ins · 97 stations Chester SC, SC
38.2 W4PSC Leslie
W4PSC
 444.7250 +5 DCS 156 FM (analog) 🗓 1 net 1 net · 15 check-ins · 8 stations Leslie, SC
40.2 W4FTK Richburg
W4FTK AllStar
 146.7600 -0.6 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Richburg, SC
40.7 W4FTK Clinton
W4FTK AllStar
 443.6750 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Clinton, SC
40.8 KW4BET Lewis
KW4BET AllStar
 442.1750 +5 none FM (analog) AllStar 530449 🗓 1 net 1 net Lewis SC, SC
40.8 KW4BET Chester
KW4BET AllStar
 445.9375 simplex TONE 67.0 FM (analog) AllStar 474340 🗓 1 net 1 net Chester, SC
40.8 KW4BET Lewis
KW4BET AllStar
 146.5350 simplex TONE 77.0 FM (analog) AllStar 474349 🗓 1 net 1 net Lewis, SC
40.8 KW4BET Chester
KW4BET IRLP
 446.0250 simplex TSQL 77.0 FM (analog) IRLP 4481 🗓 1 net 1 net Chester, SC
40.9 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 Chester, SC
42.5 KW4BET Union
KW4BET AllStar
 145.1500 simplex TONE 103.5 FM (analog) AllStar 474342 🗓 1 net 1 net Union, SC
42.5 K4USC Union
K4USC AllStar
 145.1500 -0.6 TONE 123.0 FM (analog) AllStar 53344 — Union, SC
42.9 KJ4BWK Saint Matthews
KJ4BWK
 145.4000 -0.6 none D-STAR — Saint Matthews, SC
43.7 K4USC Union
K4USC
 146.8350 -0.6 TONE 123.0 FM (analog) — Union, SC
44.0 WR4EC Edgefield
WR4EC
 146.8500 -0.6 TSQL 91.5 FM (analog) — Edgefield, SC
44.0 W4DV Trenton
W4DV
 145.3900 -0.6 TSQL 71.9 FM (analog) 🗓 5 nets 5 nets · 435 check-ins · 89 stations Trenton, SC
44.0 W4DV Trenton
W4DV
 442.5500 +5 CC1 DMR 🗓 5 nets 5 nets · 435 check-ins · 89 stations Trenton, SC
44.2 K1LVA Aiken
K1LVA AllStar
 145.7700 simplex TONE 131.8 FM (analog) AllStar 28249 EchoLink 179307 — Aiken, SC
45.1 AD4U Saint Matthews
AD4U
 146.6700 -0.6 TSQL 156.7 FM (analog) — Saint Matthews, SC
45.1 N7GZT Saint Matthews
N7GZT
 53.2100 -1 none FM (analog) — Saint Matthews, SC
45.3 N7GZT Saint Hemlock rd
N7GZT AllStar
 442.7750 +5 TSQL 156.7 FM (analog) AllStar 637120 — Saint Matthews, SC
46.2 W4FTK Union
W4FTK AllStar
 441.7000 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Union, SC
46.5 KJ4QLH Neeses
KJ4QLH
 147.0900 +0.6 TONE 156.7 FM (analog) — Neeses, SC
47.4 W4PAX Lancaster
W4PAX
 146.7000 -0.6 TSQL 123.0 FM (analog) — Lancaster, SC
47.4 W4PAX Lancaster
W4PAX
 444.1000 +5 TONE 192.8 FM (analog) — Lancaster, SC
47.9 W4FTK Wedgefield
W4FTK AllStar
 147.0600 +0.6 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Wedgefield, SC
47.9 KD4HLH Laurens
KD4HLH
 443.1750 +5 TONE 146.2 FM (analog) — Laurens, SC
48.2 N2ZZ Aiken
N2ZZ BM
 443.4625 +5 CC1 DMR BrandMeister 314500 🗓 4 nets 4 nets · 97 check-ins · 62 stations Aiken, SC
48.3 K4YTZ Rock Hill
K4YTZ AllStar
 147.0300 -0.6 TSQL 88.5 FM (analog) AllStar 54226 EchoLink 418325 — Rock Hill, SC
48.3 WR4SC Rock Hill
WR4SC NC-PRN
 440.5125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Rock Hill, SC
48.8 KC4IRA Lancaster Medica
KC4IRA AllStar
 444.6250 +5 Fusion (C4FM) AllStar 565231 — Lancaster, SC
48.9 KR4AIK Aiken Old Hosp
KR4AIK
 145.1600 -0.6 none D-STAR — Aiken, SC
48.9 KR4AIK Aiken Old Hosp
KR4AIK
 443.4125 +5 none D-STAR — Aiken, SC
49.5 N4ADM Aiken
N4ADM
 147.2850 +0.6 none FM (analog) — Aiken, SC
49.6 W4PSC Sharon
W4PSC AllStar
 147.3750 +0.6 DCS 156 FM (analog) AllStar 581270 EchoLink 141327 🗓 1 net 1 net · 15 check-ins · 8 stations Sharon, SC
17.2 KG4GKY offline West Columbia
KG4GKY IRLP
 446.8750 simplex TSQL 79.7 FM (analog) IRLP 4045 — West Columbia, SC
18.1 N4EOY offline Columbia
N4EOY
 224.9000 -1.6 none FM (analog) — Columbia, SC
18.5 W4EAE offline Cayce
W4EAE IRLP
 147.5100 simplex TSQL 131.8 FM (analog) IRLP 8255 — Cayce, SC