N9TPB FCC License Search

🕒 FCC license data updated today 9:45 am CDT · 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

W4MKJ HAM

✅ Available for a vanity request — free since Jul 14, 2026.

1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.

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

Not currently held · 1 holder on record · available since Jul 14, 2026

Previous holder: MICHAEL K JACKSON

Held W4MKJ Jun 22, 2018 → Jul 13, 2024 · first licensed Mar 27, 2006 as KI4OJO · 3 licenses · FRN 0014851109

KI4OJO Active General · vanity Jul 13, 2024 → expires Jul 13, 2034

Licensee
MICHAEL K JACKSON

Address
Attn: Michael K. Jackson
42 PLATINUM COURT
Johnson City, TN 37604
36.3413, -82.3819 (street) · Grid EM86ti · CQ 4 · ITU 8 · map ↗

FRN
0014851109

Previous call
W4MKJ (Technician)

Last granted
Jul 13, 2024

Effective
Jul 13, 2024

Last action
Jul 13, 2024
FCC actions (2)
- Jul 13, 2024 — Vanity call sign granted VANGRT
- Jul 13, 2024 — License issued LIISS
W4MKJ Canceled General · vanity Jun 22, 2018 → Jul 13, 2024 (canceled)

Licensee
MICHAEL K JACKSON

Address
Attn: Michael K. Jackson
42 PLATINUM COURT
Johnson City, TN 37604
36.3413, -82.3819 (street) · Grid EM86ti · CQ 4 · ITU 8 · map ↗

FRN
0014851109

Previous call
KI4OJO (Technician)

Last granted
Jun 22, 2018

Effective
Jun 22, 2018

Last action
Jul 13, 2024
FCC actions (3)
- Jul 13, 2024 — License canceled LICAN
- Jun 22, 2018 — Vanity call sign granted VANGRT
- Jun 22, 2018 — License issued LIISS
KI4OJO Canceled General Mar 27, 2006 → Jun 22, 2018 (canceled)

Licensee
MICHAEL K JACKSON

Address
42 PLATINUM COURT
Johnson City, TN 37604
36.3413, -82.3819 (street) · Grid EM86ti · CQ 4 · ITU 8 · map ↗

FRN
0014851109

Last granted
Feb 25, 2016

Effective
Jun 15, 2017

Last action
Jun 22, 2018
FCC actions (7)
- Jun 22, 2018 — License canceled LICAN
- Jun 15, 2017 — Administrative update LIAUA
- Feb 25, 2016 — License renewed LIREN
- Feb 9, 2013 — Administrative update LIAUA
- Mar 12, 2007 — License modified LIMOD
- Mar 27, 2006 — License issued LIISS
- Mar 27, 2006 — Systematic call sign granted SYSGRT

Address history

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

Seen Sep 5, 2017 → Oct 4, 2026 · 46 snapshots · as KI4OJO
MICHAEL K JACKSON
42 PLATINUM COURT, Johnson City, TN 37604
36.3413, -82.3819 (street) · Grid EM86ti · CQ 4 · ITU 8 · map ↗
Seen Feb 18, 2013 → May 12, 2017 · 22 snapshots · as KI4OJO
MICHAEL K JACKSON
419 Arbutus Avenue, KINGSPORT, TN 37660-3321
36.5269, -82.5720 (ZIP center) · Grid EM86rm · CQ 4 · ITU 8 · map ↗
Seen May 27, 2010 → Jul 26, 2012 · 5 snapshots · as KI4OJO
MICHAEL K JACKSON
6339 CARTERS VALLEY RD LOT 5, CHURCH HILL, TN 37642
36.5313, -82.7269 (ZIP center) · Grid EM86pm · CQ 4 · ITU 8 · map ↗

Others requesting W4MKJ

2 applications listed W4MKJ as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Jun 4, 2018	Jun 22, 2018	KI4OJO · MICHAEL K JACKSON · Johnson City, TN	1	Granted
Jun 23, 2003	Jul 11, 2003	KE4SAB · MICHAEL K JONES · BRISTOL, VA	2	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for W4MKJ in the last 24 hours. They show up here within seconds of W4MKJ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.