🕒 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
KZ4UZ HAM
⏳
Not available yet — opens for vanity requests
Sep 7, 2027 , two years after the license was canceled (Sep 6, 2025).
2x2 call: Advanced and Amateur Extra licensees can request it.
No pending applications list it.
📬 QSL:
LoTW user · last upload Sep 2, 2025
· eQSL AG member
· QRZ · HamQTH
Not currently held
· 1 holder on record
Previous holder: Matthew G Harmon
Held KZ4UZ Jun 23, 2017 → Sep 6, 2025
· first licensed Mar 3, 2003 as KC4ADF
· 6 licenses · FRN 0008537250
KZ5MH
Active
Amateur Extra · vanity
Sep 6, 2025 → expires Sep 6, 2035
Licensee Matthew G Harmon
Address 103 E Elderberry Street Oak Ridge, TN 37830
35.9104, -84.4201 (street) · Grid
EM75sv · CQ 4 · ITU 8 ·
map ↗
FRN 0008537250
Previous call KZ4UZ (General)
Last granted Sep 6, 2025
Effective Sep 6, 2025
Last action Sep 6, 2025
FCC actions (2)
Sep 6, 2025 — Vanity call sign granted VANGRT Sep 6, 2025 — License issued LIISS
KZ4UZ
Canceled
Amateur Extra
Jun 23, 2017 → Sep 6, 2025 (canceled)
Licensee Matthew G Harmon
Address 103 E Elderberry Street Oak Ridge, TN 37830
35.9104, -84.4201 (street) · Grid
EM75sv · CQ 4 · ITU 8 ·
map ↗
FRN 0008537250
Previous call WB4VFL (General)
Last granted Jun 23, 2017
Effective Jul 17, 2025
Last action Sep 6, 2025
FCC actions (3)
Sep 6, 2025 — License canceled LICAN Jul 17, 2025 — Systematic call sign granted SYSGRT Jul 17, 2025 — License issued LIISS
📦 Moved: Powell, TN → Oak Ridge, TN
WB4VFL
Canceled
Amateur Extra · vanity
Jun 23, 2017 → Jul 17, 2025 (canceled)
Licensee Matthew G Harmon
Address 103 E Elderberry Street Oak Ridge, TN 37830
35.9104, -84.4201 (street) · Grid
EM75sv · CQ 4 · ITU 8 ·
map ↗
FRN 0008537250
Previous call WB4VOL (General)
Last granted Jun 23, 2017
Effective Jul 17, 2025
Last action Jul 17, 2025
FCC actions (8)
Jul 17, 2025 — License canceled LICAN Dec 3, 2024 — Administrative update LIAUA Mar 14, 2024 — License modified LIMOD Jul 13, 2021 — Administrative update LIAUA Jul 8, 2021 — Administrative update LIAUA Aug 18, 2018 — Administrative update LIAUA Jun 23, 2017 — Vanity call sign granted VANGRT Jun 23, 2017 — License issued LIISS
WB4VOL
Canceled
Technician · vanity
Apr 23, 2016 → Jun 23, 2017 (canceled)
Licensee Matthew G Harmon
Address 8452 Bowsong Lane Powell, TN 37849
36.0540, -84.0485 (ZIP center) · Grid
EM76xb · CQ 4 · ITU 8 ·
map ↗
FRN 0008537250
Previous call KG4YTT
Last granted Apr 23, 2016
Effective Apr 23, 2016
Last action Jun 23, 2017
FCC actions (3)
Jun 23, 2017 — License canceled LICAN Apr 23, 2016 — Vanity call sign granted VANGRT Apr 23, 2016 — License issued LIISS
📦 Moved: Maynardville, TN → Powell, TN
KG4YTT
Canceled
Technician
Mar 7, 2003 → Apr 23, 2016 (canceled)
Licensee Matthew G Harmon
Address 8452 Bowsong Lane Powell, TN 37849
36.0540, -84.0485 (ZIP center) · Grid
EM76xb · CQ 4 · ITU 8 ·
map ↗
FRN 0008537250
Last granted Jan 19, 2013
Effective Dec 1, 2015
Last action Apr 23, 2016
FCC actions (5)
Apr 23, 2016 — License canceled LICAN Dec 1, 2015 — Administrative update LIAUA Dec 1, 2015 — Administrative update LIAUA Jan 19, 2013 — License renewed LIREN Mar 7, 2003 — License issued LIISS
KC4ADF
Terminated
Technician
Mar 3, 2003 → Mar 6, 2003
Licensee Matthew G Harmon
Address 239 Hankins Hollow Rd Maynardville, TN 37807
36.2597, -83.8260 (ZIP center) · Grid
EM86cg · CQ 4 · ITU 8 ·
map ↗
FRN 0008537250
Last granted Mar 3, 2003
Effective Mar 3, 2003
Last action Mar 6, 2003
FCC actions (2)
Mar 6, 2003 — License terminated LITERM Mar 3, 2003 — License issued LIISS
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Dec 20, 2024 → Oct 4, 2026 · 14 snapshots · as WB4VFL
Matthew G Harmon
103 E Elderberry Street, Oak Ridge, TN 37830
35.9104, -84.4201 (street) · Grid
EM75sv · CQ 4 · ITU 8 ·
map ↗
Seen Jan 14, 2016 → Oct 4, 2026 · 60 snapshots · as KG4YTT
Matthew G Harmon
8452 Bowsong Lane, Powell, TN 37849
36.0540, -84.0485 (ZIP center) · Grid
EM76xb · CQ 4 · ITU 8 ·
map ↗
Seen Nov 7, 2004 → Oct 4, 2026 · 54 snapshots · as KC4ADF
Matthew G Harmon
239 Hankins Hollow Rd, Maynardville, TN 37807
36.2597, -83.8260 (ZIP center) · Grid
EM86cg · CQ 4 · ITU 8 ·
map ↗
Seen Apr 16, 2022 → Nov 28, 2024 · 5 snapshots · as WB4VFL
Matthew G Harmon
5 Sycamore Court, Clinton, TN 37716
36.1009, -84.1687 (ZIP center) · Grid
EM76vc · CQ 4 · ITU 8 ·
map ↗
Seen Sep 3, 2018 → May 6, 2019 · 3 snapshots · as WB4VFL
Matthew G Harmon
1632 Campbell Highlands Drive, Pioneer, TN 37847
36.4316, -84.2734 (ZIP center) · Grid
EM76uk · CQ 4 · ITU 8 ·
map ↗
Seen Feb 18, 2013 → Nov 16, 2015 · 12 snapshots · as KG4YTT
Matthew G Harmon
244 Dogwood Glen Lane, Powell, TN 37849
36.0540, -84.0485 (ZIP center) · Grid
EM76xb · CQ 4 · ITU 8 ·
map ↗
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KZ4UZ in the last 24 hours. They show up here within seconds of KZ4UZ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.
Data: FCC Universal Licensing System (amateur & GMRS), NetLogger and more · site status
n9tpb.com · 73 de N9TPB