N9TPB FCC License Search
🕒 FCC license data updated yesterday 7:16 am CDT (FCC files through Oct 7, 2026) · next update today 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

KO4XJ HAM

Advanced class licensed since 1992 (34 yrs) Paducah, KY Grid EM57ra Active on 3 nets LoTW user eQSL AG On APRS 21 min ago 53 repeaters within 50 mi
🔒 Not available — currently licensed, through May 12, 2032. If it isn't renewed, it opens for vanity requests May 13, 2034.

📬 QSL: LoTW user · last upload Oct 1, 2026 · eQSL AG member · QRZ · HamQTH

Currently held by JOHN D HUDSON · 1 holder on record

🗓 Active on 3 nets · last heard Oct 1, 2026

Current holder: JOHN D HUDSON

Held KO4XJ May 12, 1992 → present · first licensed May 12, 1992 as KO4XJ · 1 license · FRN 0002656288
📖 In the printed callbooks since 1991 as KC4HGX, 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.
KO4XJ 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.

Nets

NetWhenFrequencyRoleTimesLast
KY D-Star NetThu 12:45 PM · Thu 2:15 PM · Thu 4:00 PM ETREF056BChecked in42026-10-01
KY DMR NetThu 7:45 PM ETDMRChecked in12026-09-24
Kentucky D-Star NetThu 12:45 AM · Thu 6:30 PM ETREF056BChecked in12026-09-03

From nets logged with NetLogger since the start of collection.

📡 On the Air: APRS, Digital & WSPR Spots

📍 APRS

KO4XJ-D · 21 min ago · 10 ft
50.0000, -3.0000 · 70cm Voice (D-Star) 439.07500MHz +0.0000MHz
KO4XJ-7 · 4 days ago
37.0028, -88.5015 · SharkRF M1KE
Full history on aprs.fi →

Repeaters within 50 Miles

53 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
49.4 K4JTM Union City Obion
K4JTM AllStar
 442.9500 in 446.9500 TONE 100.0 FM (analog) AllStar 667191 EchoLink 241352 AllStar 65196 🗓 1 net 1 net · 106 check-ins · 48 stations Union City, TN
7.8 W4NJA Paducah
W4NJA EchoLink
 147.0600 +0.6 TSQL 179.9 FM (analog) EchoLink 458276 🗓 2 nets 2 nets · 101 check-ins · 41 stations Paducah, KY
18.6 KM4JZX Mayfield
KM4JZX
 145.1100 -0.6 TONE 179.9 FM (analog) 🗓 1 net 1 net · 79 check-ins · 27 stations Mayfield, KY
18.6 KM4JZX Mayfield
KM4JZX
 224.8200 -1.6 TONE 179.9 FM (analog) 🗓 1 net 1 net · 79 check-ins · 27 stations Mayfield, KY
18.6 KM4JZX Mayfield
KM4JZX
 441.8750 +5 TONE 179.9 FM (analog) 🗓 1 net 1 net · 79 check-ins · 27 stations Mayfield, KY
42.7 K4CAY Hickman Cayce
K4CAY AllStar
 145.2700 -0.6 TSQL 100.0 FM (analog) AllStar 65030 EchoLink 256914 🗓 1 net 1 net · 27 check-ins · 27 stations Hickman, KY
49.0 K4CAY Union City
K4CAY
 443.5000 +5 CC? DMR 🗓 1 net 1 net · 27 check-ins · 27 stations Union City, TN
49.0 K4CAY Hickman Fulton
K4CAY BM
 441.9125 +5 CC1 DMR BrandMeister 311145 🗓 1 net 1 net · 27 check-ins · 27 stations Hickman, KY
49.0 K4CAY Hickman Fulton
K4CAY AllStar
 444.2500 +5 TONE 100.0 FM (analog) (FM,C4FM) AllStar 682060 WIRES-X 2288 🗓 1 net 1 net · 27 check-ins · 27 stations Hickman, KY
10.8 KI4HUS Draffenville
KI4HUS EchoLink
 145.3900 -0.6 TONE 118.8 FM (analog) EchoLink 328811 🗓 1 net 1 net Draffenville, KY
12.5 KI4HUS Benton MR Squad
KI4HUS
 443.5000 +5 TSQL 118.8 FM (analog) 🗓 1 net 1 net Benton, KY
7.8 KD4DVI Paducah
KD4DVI
 147.1200 +0.6 TSQL 179.9 FM (analog) (FM,C4FM) — Paducah, KY
7.8 KY4OEM Offline Paducah
KY4OEM
 146.7600 -1.6 TSQL 179.9 FM (analog) — Paducah, KY
9.2 W4WWS Paducah
W4WWS WIRES-X
 147.1200 +0.6 DG-ID 00-00 Fusion (C4FM) WIRES-X 33265 — Paducah, KY
9.3 KD4DVI Paducah
KD4DVI
 443.0000 +5 TSQL 179.9 FM (analog) (FM,C4FM) — Paducah, KY
14.9 N9IBS Metropolis
N9IBS
 444.9750 +5 TONE 123.0 FM (analog) — Metropolis, IL
16.3 N9IBS Metropolis
N9IBS
 147.2250 +0.6 TONE 123.0 FM (analog) — Metropolis, IL
19.6 KM4LDP Metropolis Cook
KM4LDP
 146.6550 -0.6 TSQL 118.8 FM (analog) — Metropolis, IL
20.4 KN4CG Jonathan Creek
KN4CG
 146.9850 -0.6 TONE 123.0 FM (analog) — Jonathan Creek, KY
27.0 N9RCM Grand Chain
N9RCM
 145.1300 -0.6 TSQL 118.8 FM (analog) — Grand Chain, IL
28.2 KB4MLW Wingo
KB4MLW BM
 439.8000 -5 CC1 DMR BrandMeister 320483804 — Wingo, KY
28.6 KA4WWS Murray
KA4WWS BM
 442.8750 +5 CC1 DMR BrandMeister 312254 — Murray, KY
28.6 K4MSU Murray
K4MSU WIRES-X
 147.2400 +0.6 DG-ID 00-00 Fusion (C4FM) WIRES-X 51371 — Murray, KY
28.7 K4MSU Murray PDF Arts
K4MSU
 146.9400 -0.6 TSQL 91.5 FM (analog) (C4FM,FM) — Murray, KY
29.0 K4MSU Murray
K4MSU EchoLink
 443.8000 +5 TSQL 91.5 FM (analog) (C4FM,FM) EchoLink 207370 — Murray, KY
29.2 K4GFX Fredonia Crayne
K4GFX
 444.8250 +5 TSQL 100.0 FM (analog) — Fredonia, KY
29.3 K4GFX Fredonia Crayne
K4GFX EchoLink
 147.2850 +0.6 TSQL 100.0 FM (analog) EchoLink 186083 — Fredonia, KY
31.4 KD9CHL Marion
KD9CHL
 443.4000 +5 TONE 100.0 FM (analog) — Marion, KY
32.5 KA9SKT Wickliffe
KA9SKT
 147.1800 +0.6 TSQL 88.5 FM (analog) — Wickliffe, KY
34.6 W4KBL Princeton Vocati
W4KBL AllStar
 444.1750 +5 TSQL 123.0 FM (analog) (FM,C4FM) WIRES-X 40806 AllStar 663331 — Princeton, KY
34.6 W4KBL Princeton Vocati
W4KBL AllStar
 145.2300 -0.6 TSQL 179.9 FM (analog) AllStar 663330 EchoLink 328998 — Princeton, KY
36.5 W4GZ Hamlin
W4GZ
 147.2400 +0.6 TSQL 91.5 FM (analog) (FM,C4FM) — Hamlin, KY
40.1 K9OWU Herod Williams
K9OWU
 444.8000 +5 TSQL 88.5 FM (analog) (FM,C4FM) — Herod, IL
40.1 WS9CAN Herod Williams
WS9CAN
 145.3700 -0.6 Fusion (C4FM) — Herod, IL
40.1 WS9CAN Herod Williams
WS9CAN
 146.8800 -0.6 TSQL 88.5 FM (analog) — Herod, IL
40.5 W9WG Tunnel Hill
W9WG
 147.3450 +0.6 TSQL 88.5 FM (analog) — Tunnel Hill, IL
41.7 K4JTM South Fulton
K4JTM BM
 444.1125 +5 CC1 DMR BrandMeister 314753 — South Fulton, TN
43.7 KY4KEN Cerulean
KY4KEN
 147.1950 +0.6 TONE 136.5 FM (analog) — Cerulean, KY
45.8 KA4BNI Martin
KA4BNI BM
 444.7125 +5 CC1 DMR BrandMeister 310544 — Martin, TN
46.0 W4WKY Dawson S Outwood
W4WKY EchoLink
 443.2250 +5 TONE 77.0 FM (analog) (FM,C4FM) EchoLink 328998 — Dawson Springs, KY
46.0 KF4CWK Dawson Springs
KF4CWK
 146.7750 -0.6 none FM (analog) — Dawson Springs, KY
46.0 W4WKY Dawson Springs
W4WKY
 147.3150 +0.6 TSQL 82.5 FM (analog) (FM,C4FM) — Dawson Springs, KY
47.3 K4JTM Offline Greenfield
K4JTM
 442.9125 +5 CC? DMR — Greenfield, TN
48.2 K9IM Olive Branch
K9IM
 147.2550 +0.6 TSQL 118.8 FM (analog) — Olive Branch, IL
48.5 KO4LFZ Hickman
KO4LFZ BM
 439.4500 in 430.4500 CC1 DMR BrandMeister 3180550 BrandMeister 318055005 — Hickman, KY
49.0 AG4BT Providence
AG4BT
 147.2550 +0.6 none FM (analog) — Providence, KY
49.4 KJ4ISZ Paris
KJ4ISZ
 147.3600 +0.6 TONE 123.0 FM (analog) — Paris, TN
49.5 W4UTM Martin
W4UTM
 146.6250 -0.6 TSQL 100.0 FM (analog) — Martin, TN
49.5 W4UTM Martin
W4UTM
 443.2750 +5 TONE 100.0 FM (analog) — Martin, TN
49.8 KA4BNI Dresden
KA4BNI BM
 442.1500 +5 TSQL 131.8 FM (analog) (DMR,FM) BrandMeister 311062 — Dresden, TN
50.0 K4JTM Union City
K4JTM BM
 442.3500 +5 CC1 DMR BrandMeister 311035 — Union City, TN
50.0 W4NWT Union City
W4NWT BM
 147.0150 +0.6 CC5 DMR BrandMeister 311056 — Union City, TN
50.0 K4JTM Union City
K4JTM BM
 145.3000 -0.6 CC1 DMR BrandMeister 314193 — Union City, TN