N9TPB FCC License Search
🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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

KO4SA HAM

🔒 Not available — currently licensed, through Sep 18, 2031. If it isn't renewed, it opens for vanity requests Sep 19, 2033.

📬 QSL: LoTW user, last upload Jun 13, 2023 · not eQSL AG

📝 KO4SA has filed vanity applications before — latest filed Aug 31, 2021 · what was requested

Currently held by Stuart A Koch · 2 holders on record

Current holder: Stuart A Koch

Held KO4SA Sep 18, 2021 → present · first licensed Nov 16, 2020 as KO4JJI · 3 licenses · FRN 0030181440

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

Previous holder: DARRYL J SWAIM

Held KO4SA Feb 13, 2002 → May 12, 2012 · first licensed Feb 13, 2002 as KO4SA · 1 license · FRN 0006364939

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

Vanity applications filed by KO4SA

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 Aug 31, 2021
Granted Sep 18, 2021
0009690469
 KO4ST · Stuart A Koch · Amateur Extra
29463 Goose Point Ct, Port Royal, VA 22535
38.1365, -77.1281 (street) · Grid FM18kd · CQ 5 · ITU 8 · map ↗
1.KO4SA ✓ granted
 Granted
got KO4SA
Filed Mar 23, 2021
Granted Apr 10, 2021
0009465022
 KO4JJI · Stuart A Koch · Amateur Extra
29463 Goose Point Ct, Port Royal, VA 22535
38.1365, -77.1281 (street) · Grid FM18kd · CQ 5 · ITU 8 · map ↗
1.KO4ST ✓ granted
2.KO4SA ✓ granted
 Granted
got KO4ST

Others requesting KO4SA

3 applications listed KO4SA as a choice, newest first.

FiledAwardApplicantChoice #Status
Aug 31, 2021 Sep 18, 2021 KO4ST · Stuart A Koch · Port Royal, VA 1Granted
Mar 23, 2021 Apr 10, 2021 KO4JJI · Stuart A Koch · Port Royal, VA 2Granted
Aug 12, 2015 Aug 30, 2015 KM4LPS · SATERN Of Palm Beach · Lake Worth, FL 14Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KO4SA in the last 24 hours. They show up here within seconds of KO4SA beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

131 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
10.8 W4KGC King George
W4KGC
 146.7450 -0.6 TSQL 107.2 FM (analog) — King George, VA
10.8 K4GVA King George
K4GVA
 448.4750 -5 TONE 79.7 FM (analog) — King George, VA
11.8 KC8VFN King George Locu
KC8VFN
 146.7750 -0.6 TSQL 110.9 FM (analog) — King George, VA
13.1 KF4AH Montross
KF4AH
 146.8950 -0.6 TSQL 110.9 FM (analog) — Montross, VA
13.3 AE4ML Bowling Gre SRMC
AE4ML
 442.5750 +5 TSQL 79.7 FM (analog) (DMR,FM,P25) — Bowling Green, VA
15.1 N3PZZ King George Dahl
N3PZZ
 145.3300 -0.6 TONE 88.5 FM (analog) — King George, VA
16.7 N3PZZ Dahlgren Potomac
N3PZZ
 145.2500 -0.6 TONE 88.5 FM (analog) — Dahlgren, VA
17.7 K4MMJ Fredericksb FMl8
K4MMJ BM
 433.1000 +5 CC1 DMR BrandMeister 317511602 — Fredericksburg, FMl8, VA
20.7 WX4EMC Frederic Cosners
WX4EMC DMRVA
 145.3000 -0.6 CC1 DMR DMRVA — Fredericksburg, VA
21.4 W1ZFB Fredericksburg
W1ZFB AllStar
 51.8600 -0.5 TONE 127.3 FM (analog) AllStar 42839 EchoLink 303832 — Fredericksburg, VA
21.4 AE4ML Fredericksburg
AE4ML DMRVA
 442.8500 +5 TSQL 79.7 FM (analog) (DMR,FM,P25) DMRVA — Fredericksburg, VA
21.7 W1ZFB Fred Four Mile F
W1ZFB AllStar
 927.0375 -25 TSQL 91.5 FM (analog) AllStar 41631 — Fredericksburg, VA
22.5 AE4ML Spotsylvania
AE4ML DMRVA
 442.4000 +5 CC1 DMR BrandMeister 310747 DMRVA — Spotsylvania, VA
22.5 N8RAT Fredericksburg
N8RAT DMRVA
 442.1125 +5 CC1 DMR DMRVA — Fredericksburg, VA
22.7 WX4EMC Fredericksburg
WX4EMC DMRVA
 442.4000 +5 CC1 DMR DMRVA — Fredericksburg, VA
24.4 K4TS Fred Chancellor
K4TS
 443.8500 +5 TSQL 79.7 FM (analog) (FM,C4FM) — Fredericksburg, VA
24.5 K4TS Fred Chancellor
K4TS
 147.0150 +0.6 TSQL 79.7 FM (analog) 🗓 1 net 1 net Fredericksburg, VA
24.7 N3KUN Chaptico
N3KUN
 145.2500 -0.6 TONE 110.9 FM (analog) — Chaptico, MD
24.7 N4VKF Spotsylvania
N4VKF BM
 434.5500 +5 CC1 DMR BrandMeister 3151100 — Spotsylvania, VA
24.7 W4ETC Remington
W4ETC BM
 433.5500 in 439.5500 CC1 DMR BrandMeister 3214299 — Remington, VA
24.9 KQ4TNV Stafford
KQ4TNV WIRES-X
 145.7850 simplex Fusion (C4FM) WIRES-X 99012 — Stafford, VA
24.9 KQ4TNV Stafford
KQ4TNV BM
 446.4125 -5 none D-STAR (C4FM,DMR,DV) BrandMeister 314452 — Stafford, VA
25.3 WX4EMC Spotsylvania
WX4EMC
 224.2600 -1.6 TONE 114.8 FM (analog) — Spotsylvania, VA
27.0 KR4KMS Stafford
KR4KMS BM
 449.5000 -5 CC7 DMR BrandMeister 322289401 — Stafford, VA
28.9 W4TTL Walkerton
W4TTL
 146.7150 -0.6 none FM (analog) — Walkerton, VA
29.1 WS4VA Stafford
WS4VA
 145.3200 -0.6 none D-STAR — Stafford, VA
29.1 WS4VA Stafford
WS4VA
 147.3750 +0.6 TSQL 79.7 FM (analog) — Stafford, VA
29.1 WS4VA Stafford
WS4VA WIRES-X
 444.4500 +5 Fusion (C4FM) WIRES-X 54540 — Stafford, VA
29.1 WS4VA Stafford
WS4VA
 447.2750 -5 none D-STAR — Stafford, VA
29.1 WS4VA Stafford
WS4VA
 1282.2000 -12 none D-STAR — Stafford, VA
29.2 WS4VA Stafford
WS4VA
 145.2700 -0.6 TSQL 79.7 FM (analog) — Stafford, VA
29.2 WS4VA Stafford
WS4VA
 442.4500 +5 TONE 79.7 FM (analog) (FM,C4FM) — Stafford, VA
29.4 KD4RJN Beaverdam Ashlan
KD4RJN WIRES-X
 147.0600 +0.6 TSQL 74.4 FM (analog) (FM,C4FM) WIRES-X 33143 — Beaverdam, VA
29.4 WA4FC Beaverdam
WA4FC DMRVA
 444.6125 +5 CC1 DMR DMRVA — Beaverdam, VA
29.6 K3OCM Charlotte Hall
K3OCM K4USD-Net
 443.1875 +5 CC6 DMR K4USD-Net — Charlotte Hall, MD
29.7 N3PX Mechanicsville
N3PX
 147.1950 +0.6 TSQL 156.7 FM (analog) 🗓 1 net 1 net · 25 check-ins · 11 stations Mechanicsville, MD
29.8 KC3FOQ Leonardtown Fair
KC3FOQ
 147.3900 +0.6 TONE 146.2 FM (analog) (FM,C4FM) — Leonardtown, MD
29.8 KC3FOQ Leonardtown Fair
KC3FOQ
 443.3000 +5 TONE 123.0 FM (analog) (FM,C4FM) — Leonardtown, MD
31.9 N8ELS Hanover
N8ELS
 145.1100 -0.6 TSQL 74.4 FM (analog) — Hanover, VA
32.0 KD4RJN Ashland
KD4RJN BM
 443.1375 +5 CC1 DMR BrandMeister 315143 — Ashland, VA
32.3 K3FBI Quantico
K3FBI
 147.3450 +0.6 TONE 167.9 FM (analog) (FM,P25) — Quantico, VA
32.3 K3FBI Quantico
K3FBI
 443.5500 +5 TONE 167.9 P25 — Quantico, VA
32.5 N3PPH Mechanicsville
N3PPH Interstate
 441.7875 +5 CC1 DMR Interstate-2 — Mechanicsville, MD
32.6 K6XH Callao
K6XH BM
 443.0875 +5 CC1 DMR BrandMeister 314364 — Callao, VA
33.3 N3PPH Hollywood Fire
N3PPH
 145.3500 -0.6 TONE 156.7 FM (analog) — Hollywood, MD
33.8 W3BPT Hollywood
W3BPT Interstate
 146.8500 -0.6 CC1 DMR Interstate-3 — Hollywood, MD
35.4 KB2SKP Lexington Park
KB2SKP WIRES-X
 445.2500 -5 DG-ID 00-00 Fusion (C4FM) WIRES-X 74906 — Lexington Park, MD
35.5 WD4HRO Woodbridge
WD4HRO
 1293.0000 -20 none D-STAR — Woodbridge, VA
36.1 K3GGM Hollywood
K3GGM BM
 446.5000 -5 CC1 DMR BrandMeister 3211901 — Hollywood, MD
36.6 KA4DCS Woodbridge Potom
KA4DCS
 444.8500 +5 none FM (analog) — Woodbridge, VA
37.9 N3LHD Aquasco
N3LHD Interstate
 442.4625 +5 CC1 DMR Interstate-c-Bridge-1 — Aquasco, MD
38.6 W3SMD Barstow
W3SMD AllStar
 223.9000 -1.6 TONE 186.2 FM (analog) AllStar 513100 — Barstow, MD
38.8 N3FI Barstow
N3FI
 443.7000 +5 TSQL 179.9 FM (analog) (FM,C4FM) — Barstow, MD
38.8 W4NNK Heathsville
W4NNK
 147.3300 +0.6 TONE 100.0 FM (analog) — Heathsville, VA
39.3 W4IY Woodbridge
W4IY AllStar
 147.2400 +0.6 TSQL 107.2 FM (analog) AllStar 52951 EchoLink 615284 — Woodbridge, VA
39.3 W4IY Woodbridge
W4IY
 224.7800 -1.6 none FM (analog) — Woodbridge, VA
39.3 W4IY Woodbridge
W4IY WIRES-X
 444.9000 +5 TSQL 127.3 FM (analog) (FM,C4FM) WIRES-X 73418 — Woodbridge, VA
39.9 KC3BFB Fort
KC3BFB
 146.7150 -0.6 TONE 110.9 FM (analog) — Fort Washington, MD
39.9 W1JD Mechanicsville
W1JD BM
 439.8750 -5 CC8 DMR BrandMeister 3124132 — Mechanicsville, MD
40.1 K3HKI Lexington Park
K3HKI
 146.6400 -0.6 TSQL 146.2 FM (analog) 🗓 3 nets 3 nets · 56 check-ins · 30 stations Lexington Park, MD
40.1 N3PPH Prince Frederick
N3PPH Interstate
 441.3875 +5 CC1 DMR Interstate-3 — Prince Frederick, MD
40.5 N2JDH Richmond VA
N2JDH BM
 441.6000 +5 CC8 DMR BrandMeister 3134437 — Richmond, VA L0C4T0R, VA
40.8 K3CAL Lusby Appeal
K3CAL EchoLink
 444.9500 +5 TSQL 156.7 FM (analog) (FM,C4FM) EchoLink 389207 🗓 1 net 1 net Lusby, MD
41.1 W3PQS Prince Frederick
W3PQS
 53.1700 -1 TSQL 100.0 FM (analog) — Prince Frederick, MD
41.6 WA3YUV Brandywine
WA3YUV
 443.6000 +5 TSQL 103.5 FM (analog) (FM,C4FM) — Brandywine, MD
42.1 W3SMR Brandywine
W3SMR
 147.1500 +0.6 TSQL 114.8 FM (analog) — Brandywine, MD
42.2 KB2SKP Lexington Park
KB2SKP BM
 446.0125 in 433.0125 CC1 DMR BrandMeister 314491901 — Lexington Park, MD
42.6 W4MC Richmond
W4MC BM
 445.5000 -5 CC1 DMR BrandMeister 3154910 — Richmond, VA
43.0 W4LML Chesterfield VA
W4LML BM
 431.1500 +0.1 CC1 DMR BrandMeister 3203454 — Chesterfield, VA FM1, VA
43.7 KG4MRA Richmond WTVR
KG4MRA AllStar
 224.4200 -1.6 TSQL 74.4 FM (analog) AllStar 27125 — Richmond, VA
43.7 KG4MRA Richmond WTVR
KG4MRA
 145.4300 -0.6 TSQL 74.4 FM (analog) (C4FM,FM) — Richmond, VA
44.0 K2VIZ New Kent
K2VIZ DMRVA
 442.0500 +5 CC1 DMR DMRVA — New Kent, VA
44.0 WA4FC New Kent
WA4FC DMRVA
 442.0500 +5 CC1 DMR DMRVA — New Kent, VA
44.0 NQ4T Manassas
NQ4T AllStar
 439.8000 simplex TONE 100.0 FM (analog) AllStar 59408 AllStar 594080 — Manassas, VA
44.0 NQ4T Manassas
NQ4T AllStar
 223.4000 simplex TONE 100.0 FM (analog) AllStar 594081 — Manassas, VA
44.4 N4FRS Alexandria
N4FRS
 1283.2000 -12 TSQL 203.5 FM (analog) (FM,DV) — Alexandria, VA
44.5 WA4FC Richmond
WA4FC
 927.0750 -25 TSQL 100.0 FM (analog) (FM,P25) — Richmond, VA
44.6 W4FJ Richmond State
W4FJ
 147.2550 +0.6 TSQL 74.4 FM (analog) (DV,FM) — Richmond, VA
44.6 W4FJ Richmond
W4FJ
 443.7125 +5 none D-STAR — Richmond, VA
44.6 W4FJ Richmond
W4FJ
 1284.0000 -20 none D-STAR — Richmond, VA
44.6 KC4VDZ Richmond James
KC4VDZ AllStar
 147.1350 +0.6 TSQL 107.2 FM (analog) AllStar 67781 — Richmond, VA
44.6 KC4VDZ Richmond
KC4VDZ
 442.3000 +5 TSQL 114.8 FM (analog) (FM,C4FM) — Richmond, VA
44.9 KN4ANG Burke
KN4ANG IRLP
 448.3000 simplex TSQL 110.9 FM (analog) IRLP 4048 — Burke, VA
45.9 KB4MIC Oilville
KB4MIC
 444.8000 +5 TSQL 203.5 FM (analog) — Oilville, VA
45.9 WA4FC Richmond
WA4FC DMRVA
 147.1800 +0.6 CC1 DMR DMRVA — Richmond, VA
45.9 WA4ONG Richmond
WA4ONG BM
 449.9500 +5 CC1 DMR BrandMeister — Richmond, VA
46.1 N3RWZ Louisa
N3RWZ BM
 433.5000 in 446.0500 CC1 DMR BrandMeister 321485802 🗓 1 net 1 net · 32 check-ins · 17 stations Louisa, VA
46.4 W4HFH Alexandria
W4HFH DMRVA
 442.4125 +5 CC1 DMR DMRVA 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
46.4 W4HFH Alexandria
W4HFH
 927.6000 -25 TSQL 107.2 FM (analog) 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
46.4 N4FRS Alexandria
N4FRS
 449.3750 -5 TONE 203.5 FM (analog) (FM,DV) — Alexandria, VA
46.4 K4GVT Manassas
K4GVT
 443.5000 +5 TSQL 110.9 FM (analog) — Manassas, VA
46.5 K4US Alexandria GW
K4US
 146.6550 -0.6 TSQL 141.3 FM (analog) (C4FM,FM) — Alexandria, VA
46.6 W4HOO Richmond
W4HOO BM
 446.5000 -5 CC1 DMR BrandMeister 322321501 — Richmond, VA
46.8 WA4FC Richmond Dtwn
WA4FC
 224.5200 -1.6 TONE 74.4 FM (analog) — Richmond, VA
46.8 WA4FC Richmond Dtwn
WA4FC
 927.0500 -25 TSQL 100.0 FM (analog) (FM,P25) — Richmond, VA
46.8 WA4FC Richmond Dtwn
WA4FC
 1282.0000 -20 TSQL 88.5 FM (analog) — Richmond, VA
46.9 N3JLT Alexandria
N3JLT Interstate
 443.1000 +5 CC1 DMR Interstate 🗓 1 net 1 net · 21 check-ins · 21 stations Alexandria, VA
46.9 KK4QGD Manassas Park
KK4QGD BM
 425.5000 +5 CC1 DMR BrandMeister 313135 — Manassas Park, VA
47.1 K3CAL Sunderland
K3CAL EchoLink
 146.9850 -0.6 TONE 156.7 FM (analog) (FM,C4FM) EchoLink 389207 🗓 1 net 1 net Sunderland, MD
47.1 N3PPH Sunderland Mt
N3PPH Interstate
 441.6375 +5 CC1 DMR Interstate-2 — Sunderland, MD
47.2 WG3K Chesapeake Beach
WG3K BM
 444.3500 +5 none D-STAR (DMR,DV) BrandMeister 312393 — Chesapeake Beach, MD
47.4 W4HFH Alexandria
W4HFH
 145.3800 -0.6 none D-STAR 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
47.4 W4HFH Alexandria Hosp
W4HFH
 442.0600 +5 none D-STAR 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
47.4 W4HFH Alexandria Hosp
W4HFH
 1284.6000 -12 none D-STAR 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
48.0 K4SVT Forest
K4SVT BM
 441.9000 +5 CC1 DMR BrandMeister 311287801 — Forest, VA
48.2 K4LCE Louisa MSAW Ave
K4LCE
 145.3300 -0.6 TSQL 131.8 FM (analog) (FM,C4FM) — Louisa, VA
48.3 W4HFH Alexandria
W4HFH
 53.1300 -1 TONE 107.2 FM (analog) 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
48.3 W4HFH Alexandria
W4HFH
 147.3150 +0.6 TONE 107.2 FM (analog) 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
48.3 W4HFH Alexandria
W4HFH
 224.8200 -1.6 TONE 107.2 FM (analog) 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
48.3 W4HFH Alexandria
W4HFH
 444.6000 +5 TONE 107.2 FM (analog) 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
48.3 W4HFH Alexandria
W4HFH
 1282.6000 -12 TONE 107.2 FM (analog) 🗓 1 net 1 net · 11 check-ins · 11 stations Alexandria, VA
48.4 K4LCE Louisa
K4LCE
 442.2250 +5 TSQL 131.8 FM (analog) — Louisa, VA
48.7 KB4MIC Gum Spring
KB4MIC
 53.0700 -1 TONE 203.5 FM (analog) — Gum Spring, VA
48.7 K0BMM Arlington
K0BMM BM
 447.3125 -5 CC1 DMR BrandMeister 322315305 — Arlington, VA
49.1 W4OVH
Listed as W4OVH/R
 Manassas
W4OVH AllStar
 224.6600 -1.6 TONE 100.0 FM (analog) AllStar 47551 — Manassas, VA
49.1 W4OVH Manassas NOVEC
W4OVH
 146.8650 -0.6 none D-STAR — Manassas, VA
49.1 W4OVH Manassas NOVEC
W4OVH
 442.5125 +5 none D-STAR — Manassas, VA
49.3 W4NNK Kilmarnock
W4NNK
 146.8350 -0.6 TONE 100.0 FM (analog) — Kilmarnock, VA
49.5 W4OVH Manassas Wtr
W4OVH AllStar
 146.9700 -0.6 TONE 100.0 FM (analog) AllStar 46931 — Manassas, VA
49.5 W4OVH Manassas Wtr
W4OVH AllStar
 442.2000 +5 TONE 100.0 FM (analog) (FM,C4FM) AllStar 27061 — Manassas, VA
49.7 WB4IKL Gum Spring
WB4IKL
 147.2700 +0.6 TSQL 203.5 FM (analog) (FM,C4FM) — Gum Spring, VA
49.8 WA4FC Gum Spring
WA4FC DMRVA
 443.4375 +5 CC1 DMR DMRVA — Gum Spring, VA
49.8 N4GEC Gum Spring
N4GEC
 444.6500 +5 TSQL 203.5 FM (analog) — Gum Spring, VA
24.8 W7DQ offline Widewater
W7DQ IRLP
 446.9250 simplex TSQL 107.2 FM (analog) IRLP 3510 — Widewater, VA
24.9 WU5MC offline Stafford
WU5MC
 442.4875 +5 none D-STAR — Stafford, VA
25.4 N2XHZ offline Spotsylvania
N2XHZ
 447.8750 -5 none FM (analog) — Spotsylvania, VA
31.9 W4SVR offline Mechanicsville
W4SVR
 145.2400 -0.6 none FM (analog) (FM,C4FM) — Mechanicsville, VA
33.2 KB3FWW offline Hollywood
KB3FWW IRLP
 449.4900 simplex TSQL 146.2 FM (analog) IRLP 8856 — Hollywood, MD
38.4 WX4EMC offline Heathsville WCNV
WX4EMC DMRVA
 442.7000 +5 CC1 DMR DMRVA — Heathsville, VA
44.4 WA4MAS offline Richmond
WA4MAS WIRES-X
 145.1100 -0.6 TONE 127.3 FM (analog) (FM,C4FM) WIRES-X 30287 — Richmond, VA
49.4 KN4SKI offline Richmond VSP
KN4SKI
 146.9400 -0.6 TSQL 74.4 FM (analog) (FM,C4FM) — Richmond, VA

Data courtesy of RepeaterBook.com