N9TPB FCC License Search
🕒 FCC license data updated today 7:16 am CDT (FCC files through Oct 7, 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)

K3SD HAM

Amateur Extra class licensed since 1987 (39 yrs) Piney Point, MD Grid FM18rd 52 repeaters within 50 mi
🔒 Not available — currently licensed, through Jul 24, 2027. If it isn't renewed, it opens for vanity requests Jul 25, 2029.

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

Currently held by STANLEY M DUNN · 1 holder on record

Current holder: STANLEY M DUNN

Held K3SD Jul 28, 1987 → present · first licensed Jul 28, 1987 as K3SD · 1 license · FRN 0016524639
📖 In the printed callbooks since 1981 as K3SD, 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.
K3SD 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.

Others Requesting K3SD

3 applications listed K3SD as a choice, newest first.

FiledAwardApplicantChoice #K3SDResult
Jul 25, 2025 Aug 12, 2025 KC3SSD · Benjamin P Marlatt · Carthage, NC 2Dismissed Application dismissed
Jan 29, 2016 Feb 16, 2016 N4CND · ORIS A GRIM III · Jefferson, GA 11Not granted They got N4SDG (choice 1)
Jun 5, 2012 Jun 23, 2012 KD3SB · Harry E Holsopple · Scottdale, PA 21Dismissed Application dismissed

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for K3SD in the last 24 hours. They show up here within seconds of K3SD beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

52 repeaters within 50 miles of this address, most active 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
7.6 K3HKI Lexington Park
K3HKI
 146.6400 -0.6 TSQL 146.2 FM (analog) 🗓 3 nets 3 nets · 109 check-ins · 44 stations Lexington Park, MD
24.2 N3PX Mechanicsville
N3PX
 147.1950 +0.6 TSQL 156.7 FM (analog) 🗓 1 net 1 net · 42 check-ins · 13 stations Mechanicsville, MD
10.1 KC3FOQ Leonardtown Fair
KC3FOQ
 147.3900 +0.6 TONE 146.2 FM (analog) (FM,C4FM) 🗓 2 nets 2 nets · 13 check-ins · 10 stations Leonardtown, MD
10.1 KC3FOQ Leonardtown Fair
KC3FOQ
 443.3000 +5 TONE 123.0 FM (analog) (FM,C4FM) 🗓 2 nets 2 nets · 13 check-ins · 10 stations Leonardtown, MD
16.9 K3CAL Lusby Appeal
K3CAL EchoLink
 444.9500 +5 TSQL 156.7 FM (analog) (FM,C4FM) EchoLink 389207 🗓 1 net 1 net Lusby, MD
37.0 K3CAL Sunderland
K3CAL EchoLink
 146.9850 -0.6 TONE 156.7 FM (analog) (FM,C4FM) EchoLink 389207 🗓 1 net 1 net Sunderland, MD
48.9 K3DRC Salisbury WMDT
K3DRC
 146.8200 -0.6 TSQL 156.7 FM (analog) 🗓 1 net 1 net Salisbury, MD
9.9 KB2SKP Lexington Park
KB2SKP WIRES-X
 445.2500 -5 DG-ID 00-00 Fusion (C4FM) WIRES-X 74906 — Lexington Park, MD
10.2 K6XH Callao
K6XH BM
 443.0875 +5 CC1 DMR BrandMeister 314364 — Callao, VA
11.3 W1JD Mechanicsville
W1JD BM
 439.8750 -5 CC8 DMR BrandMeister 3124132 — Mechanicsville, MD
12.9 K3GGM Hollywood
K3GGM BM
 446.5000 -5 CC1 DMR BrandMeister 3211901 — Hollywood, MD
14.6 KB3FWW Offline Hollywood
KB3FWW IRLP
 449.4900 simplex TSQL 146.2 FM (analog) IRLP 8856 — Hollywood, MD
14.6 N3PPH Hollywood Fire
N3PPH
 145.3500 -0.6 TONE 156.7 FM (analog) — Hollywood, MD
15.2 W3BPT Hollywood
W3BPT Interstate
 146.8500 -0.6 CC1 DMR Interstate-3 — Hollywood, MD
15.9 W4NNK Heathsville
W4NNK
 147.3300 +0.6 TONE 100.0 FM (analog) — Heathsville, VA
16.4 WX4EMC Offline Heathsville WCNV
WX4EMC DMRVA
 442.7000 +5 CC1 DMR DMRVA — Heathsville, VA
18.8 N3PPH Mechanicsville
N3PPH Interstate
 441.7875 +5 CC1 DMR Interstate-2 — Mechanicsville, MD
19.7 KB2SKP Lexington Park
KB2SKP BM
 446.0125 in 433.0125 CC1 DMR BrandMeister 314491901 — Lexington Park, MD
20.5 KF4AH Montross
KF4AH
 146.8950 -0.6 TSQL 110.9 FM (analog) — Montross, VA
21.3 N3KUN Chaptico
N3KUN
 145.2500 -0.6 TONE 110.9 FM (analog) — Chaptico, MD
26.8 K3OCM Charlotte Hall
K3OCM K4USD-Net
 443.1875 +5 CC6 DMR K4USD-Net — Charlotte Hall, MD
27.0 W3SMD Barstow
W3SMD AllStar
 223.9000 -1.6 TONE 186.2 FM (analog) AllStar 513100 — Barstow, MD
27.1 N3FI Barstow
N3FI
 443.7000 +5 TSQL 179.9 FM (analog) (FM,C4FM) — Barstow, MD
27.4 N3PPH Prince Frederick
N3PPH Interstate
 441.3875 +5 CC1 DMR Interstate-3 — Prince Frederick, MD
29.1 W3PQS Prince Frederick
W3PQS
 53.1700 -1 TSQL 100.0 FM (analog) — Prince Frederick, MD
29.7 W4NNK Kilmarnock
W4NNK
 146.8350 -0.6 TONE 100.0 FM (analog) — Kilmarnock, VA
30.7 N3PZZ Dahlgren Potomac
N3PZZ
 145.2500 -0.6 TONE 88.5 FM (analog) — Dahlgren, VA
30.7 W4GSF Kilmarnock Fire
W4GSF
 145.4500 -0.6 none FM (analog) — Kilmarnock, VA
30.8 W4GSF Kilmarnock
W4GSF
 146.8350 -0.6 TONE 173.8 FM (analog) — Kilmarnock, VA
31.5 N3PZZ King George Dahl
N3PZZ
 145.3300 -0.6 TONE 88.5 FM (analog) — King George, VA
32.6 N3LHD Aquasco
N3LHD Interstate
 442.4625 +5 CC1 DMR Interstate-c-Bridge-1 — Aquasco, MD
33.1 KC8VFN King George Locu
KC8VFN
 146.7750 -0.6 TSQL 110.9 FM (analog) — King George, VA
33.4 WG3K Chesapeake Beach
WG3K BM
 444.3500 +5 none D-STAR (DMR,DV) BrandMeister 312393 — Chesapeake Beach, MD
37.0 N3PPH Sunderland Mt
N3PPH Interstate
 441.6375 +5 CC1 DMR Interstate-2 — Sunderland, MD
37.2 N3MRG Tyaskin Muddy
N3MRG
 146.8650 -0.6 CC1 DMR — Tyaskin, MD
37.3 W3OR Crisfield McCrea
W3OR
 145.1300 -0.6 CC1 DMR — Crisfield, MD
37.6 N3RKT Crisfield
N3RKT WIRES-X
 145.1100 -0.6 TSQL 156.7 FM (analog) (FM,C4FM) WIRES-X 30213 — Crisfield, MD
37.6 KC3DVC Crisfield
KC3DVC Interstat
 145.1300 -0.6 CC1 DMR Interstate — Crisfield, MD
38.4 W4KGC King George
W4KGC
 146.7450 -0.6 TSQL 107.2 FM (analog) — King George, VA
38.4 K4GVA King George
K4GVA
 448.4750 -5 TONE 79.7 FM (analog) — King George, VA
40.0 W4TTL Walkerton
W4TTL
 146.7150 -0.6 none FM (analog) — Walkerton, VA
41.8 K3EMD Easton
K3EMD WIRES-X
 147.0450 +0.6 TSQL 156.7 FM (analog) WIRES-X 43142 — Easton, MD
42.3 WA3YUV Brandywine
WA3YUV
 443.6000 +5 TSQL 103.5 FM (analog) (FM,C4FM) — Brandywine, MD
43.5 W3SMR Brandywine
W3SMR
 147.1500 +0.6 TSQL 114.8 FM (analog) — Brandywine, MD
43.8 N3YMS Trappe
N3YMS Interstate
 442.5375 +5 CC1 DMR Interstate — Trappe, MD
43.8 W3OR Westover
W3OR
 145.3200 -0.6 none FM (analog) — Westover, MD
44.7 KA3MRX Princess Anne
KA3MRX
 146.6250 -0.6 TONE 156.7 FM (analog) — Princess Anne, MD
45.8 AE4ML Bowling Gre SRMC
AE4ML
 442.5750 +5 TSQL 79.7 FM (analog) (DMR,FM,P25) — Bowling Green, VA
46.5 K4MMJ Fredericksb FMl8
K4MMJ BM
 433.1000 +5 CC1 DMR BrandMeister 317511602 — Fredericksburg, FMl8, VA
47.5 N3YMS Eden
N3YMS Interstate
 441.8875 +5 CC2 DMR Interstate — Eden, MD
47.8 KC3BFB Fort
KC3BFB
 146.7150 -0.6 TONE 110.9 FM (analog) — Fort Washington, MD
49.3 K3EMD Easton URM Ctr
K3EMD WIRES-X
 442.2000 +5 TSQL 156.7 FM (analog) (FM,C4FM) WIRES-X 33142 — Easton, MD