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

W4ISB HAM

Amateur Extra class licensed since 2019 (7 yrs) W4ISB since 2020 · previously KO4AHX Sunbright, TN grid EM76pf LoTW user 129 repeaters within 50 mi
🔒 Not available — currently licensed, through Oct 2, 2030. If it isn't renewed, it opens for vanity requests Oct 3, 2032.

📬 QSL: LoTW user · last upload Jan 17, 2026 · not eQSL AG · QRZ · HamQTH

📝 W4ISB has filed vanity applications before — latest filed Sep 14, 2020 · what was requested

Currently held by Michael T Swint · 1 holder on record

Current holder: Michael T Swint

Held W4ISB Oct 2, 2020 → present · first licensed Nov 26, 2019 as KO4AHX · 2 licenses · FRN 0029008174

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

Vanity applications filed by W4ISB

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 14, 2020
Granted Oct 2, 2020
0009221174
 KO4AHX · Michael T Swint · General
976 Deer Lodge Hwy, Sunbright, TN 37872
36.2132, -84.7026 (street) · Grid EM76pf · CQ 4 · ITU 8 · map ↗
1.W4ISB ✓ granted
 Granted
got W4ISB

Others requesting W4ISB

2 applications listed W4ISB as a choice, newest first.

FiledAwardApplicantChoice #Status
Sep 14, 2020 Oct 2, 2020 KO4AHX · Michael T Swint · Sunbright, TN 1Granted
Mar 12, 2010 Mar 30, 2010 KJ4SLQ · James T Baker · Citra, FL 2Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for W4ISB in the last 24 hours. They show up here within seconds of W4ISB beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

129 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
15.0 KJ4SI Petros FH Mtn
KJ4SI AllStar
 147.2550 +0.6 TONE 94.8 FM (analog) AllStar 591271 AllStar 62810 — Petros, TN
15.0 KJ4SI Petros FH Mtn
KJ4SI
 443.4500 +5 TONE 94.8 FM (analog) (FM,C4FM) — Petros, TN
15.3 no call listed
Listed as 443.450
 Petros
Tennessee
 443.4500 +5 none FM (analog) — Petros, TN
18.0 N4AZK Huntsville
N4AZK
 145.3500 -0.6 TSQL 77.0 FM (analog) — Huntsville, TN
18.6 KI4KIL Jamestown Round
KI4KIL
 147.0900 +0.6 none FM (analog) — Jamestown, TN
18.6 KC4MJN Jamestown Round
KC4MJN
 443.6250 +5 none FM (analog) — Jamestown, TN
20.0 W8EYU Crossville I-40
W8EYU
 146.8950 -0.6 TONE 118.8 FM (analog) 🗓 1 net 1 net · 22 check-ins · 22 stations Crossville, TN
20.4 KE4RX Rockwood Mt
KE4RX
 443.9750 +5 TSQL 110.9 FM (analog) (FM,C4FM) 🗓 1 net 1 net · 41 check-ins · 20 stations Rockwood, TN
21.0 KO4NNC Harriman Buzzard
KO4NNC AllStar
 224.1800 -1.6 TONE 123.0 FM (analog) AllStar 59127 EchoLink 136506 AllStar 591272 AllStar 591273 — Harriman, TN
21.0 KO4NNC Harriman Buzzard
KO4NNC
 442.2000 +5 none FM (analog) (FM,C4FM) — Harriman, TN
21.6 W4NPL Oneida
W4NPL
 442.8250 +5 TSQL 77.0 FM (analog) — Oneida, TN
22.3 KB4PNG Oneida Signal
KB4PNG AllStar
 145.3500 -0.6 TONE 77.0 FM (analog) AllStar 48491 AllStar 484910 — Oneida, TN
22.3 KB4PNG Oneida
KB4PNG
 224.1400 -1.6 TONE 77.0 FM (analog) — Oneida, TN
23.1 WB4GBI Oliv Windrock Mt
WB4GBI
 147.1500 +0.6 TSQL 156.7 FM (analog) — Oliver Springs, TN
23.4 W8EYU Crossville
W8EYU EchoLink
 146.8650 -0.6 TSQL 118.8 FM (analog) (C4FM,FM) EchoLink 783758 🗓 1 net 1 net · 22 check-ins · 22 stations Crossville, TN
23.5 W8EYU Crossville Fairf
W8EYU
 443.8500 +5 none FM (analog) (FM,C4FM) 🗓 1 net 1 net · 22 check-ins · 22 stations Crossville, TN
23.6 W4KEV Jefferson City
W4KEV
 146.8950 -0.6 TONE 100.0 FM (analog) 🗓 3 nets 3 nets Jefferson City, TN
23.8 KE4RX Rockwood
KE4RX
 441.8125 +5 none D-STAR 🗓 1 net 1 net · 41 check-ins · 20 stations Rockwood, TN
24.0 KE4RX Rockwood Mt
KE4RX
 147.0150 +0.6 TSQL 110.9 FM (analog) (FM,C4FM) 🗓 1 net 1 net · 41 check-ins · 20 stations Rockwood, TN
24.0 K4APY Rockwood
K4APY
 224.8400 -1.6 TONE 82.5 FM (analog) — Rockwood, TN
25.7 W4KEV Crossville Hinch
W4KEV
 53.9300 -0.5 none FM (analog) 🗓 3 nets 3 nets Crossville, TN
25.7 WJ9J Crossville
WJ9J
 442.2250 +5 TONE 67.0 FM (analog) — Crossville, TN
25.7 N9AWQ Crossville
N9AWQ BM
 434.9875 +12 CC1 DMR BrandMeister 3131365 — Crossville, TN
26.2 N9AWQ Crossville
N9AWQ WIRES-X
 442.1250 +5 TSQL 162.2 FM (analog) WIRES-X 71740 — Crossville, TN
26.6 KA4OAK Caryville Mtn
KA4OAK
 224.2800 -1.6 none FM (analog) — Caryville, TN
27.4 KB4PNG Caryville
KB4PNG AllStar
 444.5500 +5 TONE 77.0 FM (analog) AllStar 48495 EchoLink 234160 IRLP 4076 — Caryville, TN
27.6 no call listed
Listed as KOLFR
 Pall Mall
Tennessee
 146.8200 -0.6 TONE 100.0 FM (analog) — Pall Mall, TN
27.9 W4SKH Oak Ridge Wtr
W4SKH
 146.9700 -0.6 TSQL 88.5 FM (analog) — Oak Ridge, TN
27.9 W4KEV Oak Ridge
W4KEV
 441.9250 +5 TONE 100.0 FM (analog) 🗓 3 nets 3 nets Oak Ridge, TN
30.5 WB4GBI Oak Ridge Cross
WB4GBI
 145.4700 -0.6 TONE 118.8 FM (analog) 🗓 1 net 1 net Oak Ridge, TN
31.5 KO4LFR Pall Mall
KO4LFR
 146.8200 -0.6 TSQL 100.0 FM (analog) — Pall Mall, TN
33.0 KO4LFR Livingston Gulle
KO4LFR
 147.0450 +0.6 TSQL 100.0 FM (analog) — Livingston, TN
33.8 W4KEV Crossville
W4KEV AllStar
 147.3450 +0.6 TONE 118.8 FM (analog) AllStar 50015 🗓 3 nets 3 nets Crossville, TN
33.8 W4KEV Crossville
W4KEV
 443.8750 +5 TONE 88.5 FM (analog) 🗓 3 nets 3 nets Crossville, TN
34.2 N9IWJ Sparta
N9IWJ
 442.6250 +5 TSQL 114.8 FM (analog) — Sparta, TN
34.5 KA4OAK LaFollette
KA4OAK
 145.1300 -0.6 TSQL 100.0 FM (analog) — LaFollette, TN
36.0 KQ4ODY Knoxville
KQ4ODY BM
 438.5000 -5 CC1 DMR BrandMeister 321023801 — Knoxville, TN
36.1 NQ4Y Lenoir City
NQ4Y BM
 146.8950 -0.6 CC1 DMR BrandMeister 314724 — Lenoir City, TN
36.9 KF4DKW Lenoir City
KF4DKW
 444.2500 +5 TSQL 127.3 FM (analog) (FM,C4FM) — Lenoir City, TN
37.0 K1LNX Knoxville
K1LNX BM
 444.5625 +5 CC1 DMR BrandMeister 3147002 — Knoxville, TN
37.1 KD4UFD Karns / Powell
KD4UFD AllStar
 447.1000 simplex TONE 100.0 FM (analog) AllStar 537151 — Karns / Powell, TN
37.9 KD4UFD Karns/ Powell
KD4UFD AllStar
 146.4800 simplex TONE 100.0 FM (analog) AllStar 537150 — Karns/ Powell, TN
37.9 KD4UFD Powell
KD4UFD AllStar
 146.5650 simplex TONE 100.0 FM (analog) AllStar 537152 — Powell, TN
38.5 W4EOC Cookeville
W4EOC
 444.6000 +5 TONE 107.2 FM (analog) — Cookeville, TN
38.6 W4HPL Cookeville
W4HPL AllStar
 147.2100 +0.6 TSQL 107.2 FM (analog) EchoLink 822060 AllStar 626580 🗓 2 nets 2 nets · 18 check-ins · 8 stations Cookeville, TN
38.6 K4CP Cookeville
K4CP AllStar
 53.8500 -0.5 TONE 107.2 FM (analog) AllStar 625410 — Cookeville, TN
38.8 WB4CDK LaFollette McClo
WB4CDK BM
 444.8500 +5 CC1 DMR BrandMeister 310356 — LaFollette, TN
38.9 W1FJF Loudon
W1FJF BM
 439.7550 -5 CC1 DMR BrandMeister 314154910 — Loudon, TN
39.8 KR4MUL Knoxville
KR4MUL BM
 441.1750 in 440.9250 CC1 DMR BrandMeister 3225422 — Knoxville, TN
39.8 KA4OAK LaFollette Cross
KA4OAK
 147.3600 +0.6 TSQL 100.0 FM (analog) — LaFollette, TN
39.9 N4NJM Jellico Mtn
N4NJM
 146.9550 -0.6 TONE 77.0 FM (analog) (FM,C4FM) — Jellico, TN
41.0 KB4REC Knoxville Beaver
KB4REC EchoLink
 444.5250 +5 TSQL 100.0 FM (analog) EchoLink 19024 — Knoxville, TN
41.2 N4JMV Pikeville
N4JMV
 444.4750 +5 TSQL 100.0 FM (analog) — Pikeville, TN
41.9 WB4BSC Tellico Village
WB4BSC
 442.1000 +5 TSQL 100.0 FM (analog) — Tellico Village, TN
42.1 N1DTA Monticello
N1DTA kentuckydm
 444.9625 +5 CC1 DMR kentuckydmr-c-bidge — Monticello, KY
42.1 WB4WAR Monticello Spann
WB4WAR AllStar
 444.7500 +5 TONE 88.5 FM (analog) (FM,C4FM) AllStar 58052 — Monticello, KY
42.5 KK4TD Cookeville
KK4TD BM
 145.1100 -0.6 none D-STAR (DMR,DV) BrandMeister 314725 — Cookeville, TN
42.5 KD4WX Sparta
KD4WX
 146.6850 -0.6 TONE 114.8 FM (analog) — Sparta, TN
42.5 KR4BT Sparta
KR4BT BM
 147.1650 +0.6 TONE 123.0 FM (analog) (DMR,FM) BrandMeister 314739 — Sparta, TN
42.7 WD9JGI Sweetwater
WD9JGI
 224.9000 -1.6 TONE 127.3 FM (analog) — Sweetwater, TN
42.8 N4LCA Monticello
N4LCA
 53.3900 -1 TSQL 100.0 FM (analog) 🗓 5 nets 5 nets · 90 check-ins · 57 stations Monticello, KY
43.4 AC4DM Monticello
AC4DM
 145.1500 -0.6 TONE 77.0 FM (analog) 🗓 1 net 1 net Monticello, KY
43.4 WB4WAR Monticello
WB4WAR AllStar
 146.9950 -0.6 TONE 88.5 FM (analog) AllStar 58052 — Monticello, KY
44.1 W4YJ Sweetwater
W4YJ
 145.2500 -0.6 none FM (analog) 🗓 1 net 1 net · 24 check-ins · 24 stations Sweetwater, TN
44.3 WB4GBI Knoxville Sharp'
WB4GBI
 147.0750 +0.6 TONE 156.7 FM (analog) — Knoxville, TN
44.4 no call listed Sweetwater
Tennessee
 444.1250 +5 none FM (analog) — Sweetwater, TN
44.4 W4YJ Sweetwater
W4YJ
 444.1250 +5 none FM (analog) 🗓 1 net 1 net · 24 check-ins · 24 stations Sweetwater, TN
44.4 KE4VQM Sweetwater
KE4VQM
 147.3150 +0.6 TSQL 141.3 FM (analog) 🗓 3 nets 3 nets · 76 check-ins · 27 stations Sweetwater, TN
44.8 WA4FLH Knoxville Sharp'
WA4FLH
 443.2500 +5 TSQL 88.5 FM (analog) — Knoxville, TN
44.9 WA4UCE Cookeville TTU
WA4UCE
 145.4300 -0.6 none FM (analog) — Cookeville, TN
45.1 KQ4HOM Sweetwater
KQ4HOM
 145.2500 -0.6 TSQL 100.0 FM (analog) 🗓 1 net 1 net · 24 check-ins · 24 stations Sweetwater, TN
45.2 W4KEV Knoxville Sharp'
W4KEV
 145.1000 -0.6 none D-STAR 🗓 3 nets 3 nets Knoxville, TN
45.2 W4KEV Knoxville Sharp'
W4KEV WIRES-X
 146.8800 -0.6 Fusion (C4FM) WIRES-X 33649 🗓 3 nets 3 nets Knoxville, TN
45.2 W4KEV Knoxville Sharp'
W4KEV AllStar
 224.2000 -1.6 TONE 100.0 FM (analog) AllStar 50014 🗓 3 nets 3 nets Knoxville, TN
45.2 W4KEV Knoxville Sharp'
W4KEV
 441.8375 +5 none P25 🗓 3 nets 3 nets Knoxville, TN
45.2 W4KEV Knoxville Sharp'
W4KEV
 927.6125 -25 TSQL 146.2 FM (analog) 🗓 3 nets 3 nets Knoxville, TN
45.3 K1LNX Knoxville
K1LNX VolNET
 443.6625 +5 CC1 DMR VolNET — Knoxville, TN
45.3 KN4LNL Knoxville
KN4LNL WIRES-X
 146.8800 -0.6 DG-ID 00-00 Fusion (C4FM) WIRES-X 33649 — Knoxville, TN
45.3 KM4JXA Knoxville
KM4JXA
 144.9400 in 147.4400 none D-STAR — Knoxville, TN
45.3 W4KEV Knoxville Sharp'
W4KEV BM
 440.5500 +5 CC1 DMR BrandMeister 314732 🗓 3 nets 3 nets Knoxville, TN
45.4 W4HPL Cookeville
W4HPL
 145.1100 -0.6 none D-STAR 🗓 2 nets 2 nets · 18 check-ins · 8 stations Cookeville, TN
45.5 W4KEV Louisville
W4KEV
 927.0375 -25 TONE 100.0 FM (analog) 🗓 3 nets 3 nets Louisville, TN
45.5 KB5AG Knoxville
KB5AG BM
 439.0000 -5 CC1 DMR BrandMeister 313784001 — Knoxville, TN
45.6 W4KEV Knoxville WIMZ
W4KEV AllStar
 53.2500 -1 none FM (analog) AllStar 50001 🗓 3 nets 3 nets Knoxville, TN
45.7 K4UPX Lenoir City Gree
K4UPX
 443.0500 +5 TSQL 100.0 FM (analog) (FM,C4FM) — Lenoir City, TN
46.6 AE4DD Pikeville
AE4DD AllStar
 147.2850 +0.6 TONE 103.5 FM (analog) EchoLink 17285 AllStar 52061 — Pikeville, TN
46.7 AE4DD Pikeville
AE4DD BM
 145.3400 -0.6 CC1 DMR BrandMeister 314482 — Pikeville, TN
46.8 KN4EM Knoxville
KN4EM
 145.1000 -0.6 none D-STAR — Knoxville, TN
46.8 AA4UT Knoxville UT
AA4UT
 146.6700 -0.6 TONE 100.0 FM (analog) — Knoxville, TN
46.9 KD4WX Sparta
KD4WX
 443.7750 +5 TONE 123.0 FM (analog) — Sparta, TN
46.9 AA4UT Knoxville
AA4UT BM
 445.6000 -5 CC1 DMR BrandMeister 311641 — Knoxville, TN
46.9 AA4UT Knoxville UT
AA4UT BM
 440.6000 +5 CC1 DMR BrandMeister 311641 — Knoxville, TN
46.9 KY4ZO Knoxville
KY4ZO BM
 439.0850 -5 CC1 DMR BrandMeister 3194420 — Knoxville, TN
47.0 W4KEV Sevierville
W4KEV
 147.0000 +0.6 TSQL 100.0 FM (analog) 🗓 3 nets 3 nets Sevierville, TN
47.0 WB4GBI Knoxville
WB4GBI
 440.6375 +5 none FM (analog) — Knoxville, TN
47.0 KB4REC Knoxville Beaver
KB4REC EchoLink
 53.4700 -1 TSQL 100.0 FM (analog) EchoLink 19024 — Knoxville, TN
47.0 W4KEV Knoxville WIMZ
W4KEV
 145.2300 -0.6 none FM (analog) 🗓 3 nets 3 nets Knoxville, TN
47.0 W4KEV Knoxville Sharp'
W4KEV AllStar
 145.3700 -0.6 TONE 100.0 FM (analog) AllStar 50015 EchoLink 459455 🗓 3 nets 3 nets Knoxville, TN
47.0 N4OQJ Knoxville
N4OQJ
 224.3800 -1.6 TONE 100.0 FM (analog) — Knoxville, TN
47.0 W4KEV Knoxville WJXB
W4KEV
 442.5000 +5 TONE 100.0 FM (analog) 🗓 3 nets 3 nets Knoxville, TN
47.0 W4KEV Dupo Green Top M
W4KEV
 444.0000 +5 TSQL 100.0 FM (analog) 🗓 3 nets 3 nets Dupont Springs, TN
47.0 KB4REC Knoxville Beaver
KB4REC EchoLink
 444.1750 +5 none FM (analog) (DMR,FM) EchoLink 19024 BrandMeister 314703 — Knoxville, TN
47.0 W4KEV Knoxville
W4KEV
 444.5000 +5 TONE 100.0 FM (analog) 🗓 3 nets 3 nets Knoxville, TN
47.0 W4KEV Dupo Green Top M
W4KEV
 443.5000 +5 CC1 DMR 🗓 3 nets 3 nets Dupont Springs, TN
47.5 KB4PTJ Williamsburg
KB4PTJ WIRES-X
 146.7000 -0.6 DG-ID 00-00 Fusion (C4FM) WIRES-X 40408 WIRES-X 30408 — Williamsburg, KY
47.5 KB4PTJ Williamsburg
KB4PTJ
 53.0700 -0.5 TONE 100.0 FM (analog) — Williamsburg, KY
48.5 KG4FZR Decatur
KG4FZR
 145.1500 -0.6 TONE 141.3 FM (analog) 🗓 1 net 1 net · 8 check-ins · 8 stations Decatur, TN
48.5 KG4FZR Decatur
KG4FZR
 443.2750 +5 TONE 100.0 FM (analog) 🗓 1 net 1 net · 8 check-ins · 8 stations Decatur, TN
48.5 KP4X Decatur
KP4X AllStar
 146.5400 simplex TONE 146.2 FM (analog) AllStar 27140 — Decatur, TN
48.9 KC2CBD Cookeville
KC2CBD BM
 433.8750 +5 CC1 DMR BrandMeister 3147520 — Cookeville, TN
48.9 KW4BC Pikeville
KW4BC
 443.4250 +5 none FM (analog) (FM,C4FM) — Pikeville, TN
48.9 N4BCT Pikeville
N4BCT AllStar
 442.8750 +5 TONE 114.8 FM (analog) AllStar 59405 — Pikeville, TN
49.0 WB4GBI Knoxville
WB4GBI
 145.3000 -0.6 none FM (analog) — Knoxville, TN
49.0 N4CRG Maryville
N4CRG AllStar
 445.0000 simplex none FM (analog) AllStar 496370 — Maryville, TN
49.0 WB4GBI Knoxville
WB4GBI
 443.0000 +5 TSQL 156.7 FM (analog) — Knoxville, TN
49.3 N7DUD Knoxville
N7DUD BM
 443.6000 +5 CC1 DMR BrandMeister 314100909 — Knoxville, TN
49.5 KO4NNC Harriman Buzzard
KO4NNC
 147.1200 +0.6 TSQL 82.5 FM (analog) (FM,P25) — Harriman, TN
49.6 KW4BC Pikeville
KW4BC BM
 444.4750 +5 CC1 DMR BrandMeister 312577 — Pikeville, TN
49.7 WB4GBI Knoxville VP Hl
WB4GBI IRLP
 145.1700 -0.6 TSQL 156.7 FM (analog) IRLP 8342 — Knoxville, TN
22.3 W4BSF offline Oneida
W4BSF
 444.3875 +5 none D-STAR — Oneida, TN
22.4 KB4PNG offline Oneida
KB4PNG IRLP
 446.5000 simplex TSQL 77.0 FM (analog) IRLP 4692 — Oneida, TN
25.0 KK4VQG offline Caryville
KK4VQG
 145.0200 in 146.4200 none D-STAR — Caryville, TN
36.1 K1LNX offline Knoxville
K1LNX AllStar
 440.8000 +5 DCS 205 FM (analog) IRLP 4829 AllStar 2335 — Knoxville, TN
36.1 K1LNX offline Knoxville
K1LNX VolNET
 443.5625 +5 CC1 DMR VolNET — Knoxville, TN
37.3 NQ4Y offline Monteagle Mtn
NQ4Y
 146.8800 -0.6 CC? DMR — Monteagle Mtn, TN
38.9 W1FJF offline Loudon
W1FJF IRLP
 446.0000 simplex TSQL 77.0 FM (analog) IRLP 4525 — Loudon, TN
45.2 WB4GBI offline Knoxville
WB4GBI
 224.3400 -1.6 none FM (analog) — Knoxville, TN
47.0 W4BBB offline Walland Greentop
W4BBB
 443.8000 +5 none FM (analog) 🗓 1 net 1 net Walland, TN
48.4 N4ABV offline Louisville Red
N4ABV
 443.3750 +5 TSQL 100.0 FM (analog) — Louisville, TN