N9TPB FCC License Search
🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 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

K4DFH HAM

Amateur Extra class licensed since 2000 (26 yrs) K4DFH since 2018 · previously N4DFP Lugoff, SC grid EM94pg LoTW user 77 repeaters within 50 mi
🔒 Not available — currently licensed, through Jun 2, 2028. If it isn't renewed, it opens for vanity requests Jun 3, 2030.

📬 QSL: LoTW user · last upload May 22, 2018 as previous call N4DFP · none yet as K4DFH · not eQSL AG · QRZ · HamQTH

📝 K4DFH has filed vanity applications before — latest filed May 15, 2018 · what was requested

Currently held by DAVID F HAMMACK · 2 holders on record

Current holder: DAVID F HAMMACK

Held K4DFH Jun 2, 2018 → present · first licensed Nov 2, 2000 as N4DFP · 2 licenses · FRN 0004137402

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

Previous holder: FRED J PROBST

Held K4DFH Jul 15, 1994 → Jul 15, 2004 · first licensed Jul 15, 1994 as K4DFH · 1 license · no FRN on file (pre-2001 records)

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

Vanity applications filed by K4DFH

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 May 15, 2018
Granted Jun 2, 2018
0008212598
 N4DFP · DAVID F HAMMACK · Amateur Extra
27-B AVERY LN, LUGOFF, SC 29078
34.2774, -80.7285 (street) · Grid EM94pg · CQ 5 · ITU 8 · map ↗
1.K4DFH ✓ granted
2.N1DFH available
3.N5DFH available
6.K5DFH held
10.W2DFH
Granted
got K4DFH

Others requesting K4DFH

2 applications listed K4DFH as a choice, newest first.

FiledAwardApplicantChoice #Status
Mar 23, 2020 Apr 10, 2020 KO4CEL · DONALD E BOTSFORD · PANAMA CITY, FL 14Granted
May 15, 2018 Jun 2, 2018 N4DFP · DAVID F HAMMACK · LUGOFF, SC 1Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K4DFH in the last 24 hours. They show up here within seconds of K4DFH beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

77 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
5.2 KI4RAX Lugoff
KI4RAX
 146.8200 -0.6 TSQL 91.5 FM (analog) (FM,C4FM) — Lugoff, SC
5.2 KI4RAX Lugoff
KI4RAX
 441.8000 +5 none D-STAR (DV,DMR) — Lugoff, SC
9.4 KI4IVP Elgin
KI4IVP WIRES-X
 147.2400 +0.6 TSQL 103.5 FM (analog) (FM,C4FM) WIRES-X 18449 — Elgin, SC
14.7 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
16.2 WR4SC Columbia
WR4SC NC-PRN
 442.5125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Columbia, SC
16.2 WR4SC Columbia
WR4SC
 441.7250 +5 TONE 91.5 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Columbia, SC
16.5 W4CAE Fort Jackson
W4CAE
 146.7750 -0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 65 check-ins · 31 stations Fort Jackson, SC
19.3 KJ4BWK Columbia
KJ4BWK
 442.2000 +5 none D-STAR — Columbia, SC
19.3 KJ4BWK Columbia
KJ4BWK
 1282.2250 +12 none D-STAR — Columbia, SC
25.7 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
25.9 W4CAE Columbia
W4CAE AllStar
 147.3300 +0.6 TSQL 156.7 FM (analog) AllStar 494460 🗓 2 nets 2 nets · 65 check-ins · 31 stations Columbia, SC
25.9 K4HI Columbia
K4HI WIRES-X
 147.3600 +0.6 TSQL 100.0 FM (analog) WIRES-X 64927 — Columbia, SC
25.9 WR4SC Columbia Capital
WR4SC NC-PRN
 440.6125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Columbia, SC
25.9 K9OH Columbia
K9OH AllStar
 444.8750 +5 TSQL 91.5 FM (analog) AllStar 417861 — Columbia, SC
26.3 W4DZF Columbia St
W4DZF
 145.2700 -0.6 DCS 632 FM (analog) — Columbia, SC
28.6 W4GL Wedgefield
W4GL
 145.4300 -0.6 TSQL 156.7 FM (analog) — Wedgefield, SC
28.8 W4EAE Cayce
W4EAE
 433.1000 +5 CC1 DMR — Cayce, SC
28.8 W4EAE Cayce
W4EAE
 443.1000 +5 none D-STAR (DMR,DV) — Cayce, SC
30.1 W4GL Sumter
W4GL
 441.9500 +5 none D-STAR — Sumter, SC
30.4 KC4IRA Lancaster Medica
KC4IRA AllStar
 444.6250 +5 Fusion (C4FM) AllStar 565231 — Lancaster, SC
30.7 W4PAX Lancaster
W4PAX
 146.7000 -0.6 TSQL 123.0 FM (analog) — Lancaster, SC
30.7 W4PAX Lancaster
W4PAX
 444.1000 +5 TONE 192.8 FM (analog) — Lancaster, SC
31.4 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
32.9 W4PSC Leslie
W4PSC
 444.7250 +5 DCS 156 FM (analog) 🗓 1 net 1 net · 15 check-ins · 8 stations Leslie, SC
33.1 WR4SC Sumter
WR4SC
 147.0150 +0.6 TSQL 156.7 FM (analog) 🗓 2 nets 2 nets · 207 check-ins · 97 stations Sumter, SC
33.1 W4GL Sumter Tuomey
W4GL
 146.6400 -0.6 TONE 156.7 FM (analog) — Sumter, SC
33.1 W4GL Sumter WRJA
W4GL
 444.1500 +5 TSQL 123.0 FM (analog) (FM,DV) — Sumter, SC
34.5 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
35.2 no call listed Florence
AllStar
 29.6000 simplex CC0 DMR AllStar 29419 EchoLink 41809 AllStar 49643 — Florence, SC
35.2 KA3KDL Hartsville
KA3KDL AllStar
 146.6250 -0.6 TSQL 114.8 FM (analog) AllStar 29419 EchoLink 41809 — Hartsville, SC
36.0 W4ULH Hartsville Carol
W4ULH
 442.3500 +5 TONE 162.2 FM (analog) — Hartsville, SC
36.2 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
36.8 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
37.1 W4APE Pageland
W4APE EchoLink
 146.8950 -0.6 TONE 123.0 FM (analog) EchoLink 779467 — Pageland, SC
37.9 W4GL Sumter
W4GL
 147.0150 +0.6 TSQL 156.7 FM (analog) — Sumter, SC
37.9 WR4SC Sumter
WR4SC NC-PRN
 442.3125 +5 CC1 DMR NC-PRN 🗓 2 nets 2 nets · 207 check-ins · 97 stations Sumter, SC
38.3 KW4BET Chester Near
KW4BET XLX056
 442.4750 +5 DCS 023 FM (analog) (DMR,FM) AllStar 474346 EchoLink 442475 IRLP 7609 WIRES-X 46034 WIRES-X 36034 AllStar 474345 XLX056 🗓 1 net 1 net Chester, SC
38.3 W4CHR Chester Near
W4CHR AllStar
 145.3100 -0.6 DCS 145 FM (analog) AllStar 530447 EchoLink 307645 — Chester, SC
38.9 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
39.1 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
39.2 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
39.3 W4FTK Pageland
W4FTK AllStar
 441.8250 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Pageland, SC
39.5 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
39.5 N4UHF Little Mountain
N4UHF
 444.6500 +5 CC0 DMR — Little Mountain, SC
40.3 KQ4NOR Glymphville
KQ4NOR AllStar
 146.9550 simplex TONE 186.2 FM (analog) AllStar 66357 — Glymphville, SC
40.5 WR4SC Chester
WR4SC
 440.5750 +5 CC1 DMR 🗓 2 nets 2 nets · 207 check-ins · 97 stations Chester SC, SC
40.5 K4WBT Waxhaw JAARS Ctr
K4WBT
 444.5250 +5 TONE 94.8 FM (analog) — Waxhaw, NC
40.6 K4WBT Waxhaw
K4WBT EchoLink
 146.8650 +0.6 TONE 94.8 FM (analog) (C4FM,FM) EchoLink 84335 — Waxhaw, NC
41.0 N7GZT Saint Hemlock rd
N7GZT AllStar
 442.7750 +5 TSQL 156.7 FM (analog) AllStar 637120 — Saint Matthews, SC
41.1 KW4BET Chester
KW4BET AllStar
 445.9375 simplex TONE 67.0 FM (analog) AllStar 474340 — Chester, SC
41.1 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
41.1 KW4BET Chester
KW4BET IRLP
 446.0250 simplex TSQL 77.0 FM (analog) IRLP 4481 — Chester, SC
41.2 KW4BET Lewis
KW4BET AllStar
 146.5350 simplex TONE 77.0 FM (analog) AllStar 474349 — Lewis, SC
41.2 KW4BET Lewis
KW4BET AllStar
 442.1750 +5 none FM (analog) AllStar 530449 — Lewis SC, SC
41.3 KJ4BWK Saint Matthews
KJ4BWK
 145.4000 -0.6 none D-STAR — Saint Matthews, SC
42.2 K4YTZ Rock Hill
K4YTZ AllStar
 147.0300 -0.6 TSQL 88.5 FM (analog) AllStar 54226 EchoLink 418325 — Rock Hill, SC
42.2 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
42.4 AD4U Saint Matthews
AD4U
 146.6700 -0.6 TSQL 156.7 FM (analog) — Saint Matthews, SC
42.4 N7GZT Saint Matthews
N7GZT
 53.2100 -1 none FM (analog) — Saint Matthews, SC
46.4 W4FTK Rock Hill
W4FTK
 147.3000 +0.6 DCS 315 FM (analog) 🗓 2 nets 2 nets · 540 check-ins · 248 stations Rock Hill, SC
46.4 W4FTK Rock Hill
W4FTK AllStar
 443.8000 +5 DCS 315 FM (analog) AllStar 40040 EchoLink 367365 🗓 2 nets 2 nets · 540 check-ins · 248 stations Rock Hill, SC
47.8 W4PSC Rock Hill
W4PSC
 927.6125 -25 DCS 156 P25 🗓 1 net 1 net · 15 check-ins · 8 stations Rock Hill, SC
47.8 W4FTK Rock Hill
W4FTK AllStar
 147.2250 +0.6 TSQL 110.9 FM (analog) AllStar 51895 AllStar 50262 🗓 2 nets 2 nets · 540 check-ins · 248 stations Rock Hill, SC
47.8 W4FTK Rock Hill
W4FTK AllStar
 444.9250 +5 TSQL 91.5 FM (analog) AllStar 417862 🗓 2 nets 2 nets · 540 check-ins · 248 stations Rock Hill, SC
47.9 N5CWH Gilbert
N5CWH
 146.6550 -0.6 TSQL 156.7 FM (analog) — Gilbert, SC
47.9 KC4GYM Gilbert
KC4GYM IRLP
 224.5600 -1.6 TSQL 162.2 FM (analog) IRLP 4109 — Gilbert, SC
48.0 KQ4MKW Darlington S Ca
KQ4MKW BM
 445.5125 -5 CC1 DMR BrandMeister 321045702 — Darlington, South Ca, SC
48.6 KC4KPJ Rock Hill
KC4KPJ BM
 444.7250 +5 CC6 DMR BrandMeister 311960 — Rock Hill, SC
48.7 WD4KFD Florence I-95/Rt
WD4KFD
 442.5250 +5 TONE 210.7 FM (analog) — Florence, SC
50.0 NC4UC Monroe
NC4UC
 145.3900 -0.6 TSQL 94.8 FM (analog) (C4FM,FM) — Monroe, NC
50.0 W4ZO Monroe
W4ZO
 444.3000 +5 TSQL 100.0 FM (analog) — Monroe, NC
50.0 NC4UC Monroe
NC4UC
 444.4250 +5 TONE 94.8 FM (analog) (C4FM,FM) — Monroe, NC
22.3 W4APE offline Lucknow
W4APE EchoLink
 146.9250 -0.6 TONE 123.0 FM (analog) EchoLink 779467 — Lucknow, SC
25.9 N4EOY offline Columbia
N4EOY
 224.9000 -1.6 none FM (analog) — Columbia, SC
29.3 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
37.1 W4JMY offline Pageland
W4JMY
 53.3700 -1 TONE 100.0 FM (analog) — Pageland, SC