N9TPB
FCC License Search
🕒 FCC license data updated yesterday 9:45 am CDT · next update today 7:15 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, WINK4US HAM
✅ Available for a vanity request — free since Feb 18, 2018.
2x2 call: Advanced and Amateur Extra licensees can request it.
No pending applications list it.
📬 QSL: no LoTW uploads on record · eQSL AG member · QRZ · HamQTH
Not currently held · 1 holder on record · available since Feb 18, 2018
Previous holder: CHARLES N KAEFF JR
Held NK4US Dec 4, 2015 → Feb 17, 2016 · first licensed Feb 12, 1997 as W4EFB · 27 licenses · FRN 0002659795
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- AC4WL (Advanced)
- Last granted
- Sep 4, 2024
- Effective
- Jan 30, 2026
- Last action
- Jan 30, 2026
FCC actions (2)
- Jan 30, 2026 — Systematic call sign granted SYSGRT
- Jan 30, 2026 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- WO3C (Advanced)
- Last granted
- Sep 4, 2024
- Effective
- Sep 4, 2024
- Last action
- Jan 30, 2026
FCC actions (3)
- Jan 30, 2026 — License canceled LICAN
- Sep 4, 2024 — Vanity call sign granted VANGRT
- Sep 4, 2024 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- KY4XM (Advanced)
- Last granted
- Aug 15, 2023
- Effective
- Aug 15, 2023
- Last action
- Sep 4, 2024
FCC actions (3)
- Sep 4, 2024 — License canceled LICAN
- Aug 15, 2023 — Vanity call sign granted VANGRT
- Aug 15, 2023 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- WA4HCC (Advanced)
- Last granted
- Apr 1, 2022
- Effective
- May 2, 2023
- Last action
- Aug 15, 2023
FCC actions (3)
- Aug 15, 2023 — License canceled LICAN
- May 2, 2023 — Systematic call sign granted SYSGRT
- May 2, 2023 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- W4EFB (Advanced)
- Last granted
- Apr 1, 2022
- Effective
- Apr 1, 2022
- Last action
- May 2, 2023
FCC actions (3)
- May 2, 2023 — License canceled LICAN
- Apr 1, 2022 — Vanity call sign granted VANGRT
- Apr 1, 2022 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- KY4GV (Advanced)
- Last granted
- Dec 3, 2021
- Effective
- Dec 3, 2021
- Last action
- Apr 1, 2022
FCC actions (3)
- Apr 1, 2022 — License canceled LICAN
- Dec 3, 2021 — Vanity call sign granted VANGRT
- Dec 3, 2021 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- WA4HCC (Advanced)
- Last granted
- Feb 28, 2020
- Effective
- Apr 17, 2021
- Last action
- Dec 3, 2021
FCC actions (3)
- Dec 3, 2021 — License canceled LICAN
- Apr 17, 2021 — Systematic call sign granted SYSGRT
- Apr 17, 2021 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- KB4UL (Advanced)
- Last granted
- Feb 28, 2020
- Effective
- Feb 28, 2020
- Last action
- Apr 17, 2021
FCC actions (3)
- Apr 17, 2021 — License canceled LICAN
- Feb 28, 2020 — Vanity call sign granted VANGRT
- Feb 28, 2020 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- AD8ER (Advanced)
- Last granted
- Nov 19, 2019
- Effective
- Nov 19, 2019
- Last action
- Feb 28, 2020
FCC actions (3)
- Feb 28, 2020 — License canceled LICAN
- Nov 19, 2019 — Vanity call sign granted VANGRT
- Nov 19, 2019 — License issued LIISS
-
📦 Moved: Bethel, OH → Covington, KY
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 Juarez Circle
Covington, KY 41017
- FRN
- 0002659795
- Previous call
- KX4SW (Advanced)
- Last granted
- Jun 5, 2018
- Effective
- Oct 31, 2019
- Last action
- Nov 19, 2019
FCC actions (4)
- Nov 19, 2019 — License canceled LICAN
- Oct 31, 2019 — Administrative update LIAUA
- Sep 17, 2019 — Systematic call sign granted SYSGRT
- Sep 17, 2019 — License issued LIISS
-
📦 Moved: Covington, KY → Bethel, OH
- Licensee
- CHARLES N KAEFF JR
- Address
- 2468 Bantam Road
Bethel, OH 45106
- FRN
- 0002659795
- Previous call
- K3UQ (Advanced)
- Last granted
- Jun 5, 2018
- Effective
- Jun 26, 2019
- Last action
- Sep 17, 2019
FCC actions (3)
- Sep 17, 2019 — License canceled LICAN
- Jun 26, 2019 — Systematic call sign granted SYSGRT
- Jun 26, 2019 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- WA4HCC (Advanced)
- Last granted
- Jun 5, 2018
- Effective
- Jun 5, 2018
- Last action
- Jun 26, 2019
FCC actions (3)
- Jun 26, 2019 — License canceled LICAN
- Jun 5, 2018 — Vanity call sign granted VANGRT
- Jun 5, 2018 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- KW4XP (Advanced)
- Last granted
- Sep 29, 2017
- Effective
- Sep 29, 2017
- Last action
- Jun 5, 2018
FCC actions (3)
- Jun 5, 2018 — License canceled LICAN
- Sep 29, 2017 — Vanity call sign granted VANGRT
- Sep 29, 2017 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- KW4UV (Advanced)
- Last granted
- Mar 8, 2016
- Effective
- Sep 7, 2016
- Last action
- Sep 29, 2017
FCC actions (3)
- Sep 29, 2017 — License canceled LICAN
- Sep 7, 2016 — Systematic call sign granted SYSGRT
- Sep 7, 2016 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- AC4WL (Advanced)
- Last granted
- Mar 8, 2016
- Effective
- May 25, 2016
- Last action
- Sep 7, 2016
FCC actions (3)
- Sep 7, 2016 — License canceled LICAN
- May 25, 2016 — Systematic call sign granted SYSGRT
- May 25, 2016 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- W4EFB (Advanced)
- Last granted
- Mar 8, 2016
- Effective
- Mar 8, 2016
- Last action
- May 25, 2016
FCC actions (3)
- May 25, 2016 — License canceled LICAN
- Mar 8, 2016 — Vanity call sign granted VANGRT
- Mar 8, 2016 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- NK4US (Advanced)
- Last granted
- Feb 17, 2016
- Effective
- Feb 17, 2016
- Last action
- Mar 8, 2016
FCC actions (3)
- Mar 8, 2016 — License canceled LICAN
- Feb 17, 2016 — Vanity call sign granted VANGRT
- Feb 17, 2016 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- W4EFB (Advanced)
- Last granted
- Dec 4, 2015
- Effective
- Dec 4, 2015
- Last action
- Feb 17, 2016
FCC actions (3)
- Feb 17, 2016 — License canceled LICAN
- Dec 4, 2015 — Vanity call sign granted VANGRT
- Dec 4, 2015 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- KB4UL (Advanced)
- Last granted
- Jul 4, 2014
- Effective
- Jul 4, 2014
- Last action
- Dec 4, 2015
FCC actions (3)
- Dec 4, 2015 — License canceled LICAN
- Jul 4, 2014 — Vanity call sign granted VANGRT
- Jul 4, 2014 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- K4CNK (Advanced)
- Last granted
- Jun 4, 2013
- Effective
- Jun 4, 2013
- Last action
- Jul 4, 2014
FCC actions (3)
- Jul 4, 2014 — License canceled LICAN
- Jun 4, 2013 — Vanity call sign granted VANGRT
- Jun 4, 2013 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- WA4HCC (Advanced)
- Last granted
- Dec 2, 2011
- Effective
- Dec 14, 2011
- Last action
- Jun 4, 2013
FCC actions (4)
- Jun 4, 2013 — License canceled LICAN
- Dec 14, 2011 — Administrative update LIAUA
- Dec 2, 2011 — Vanity call sign granted VANGRT
- Dec 2, 2011 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- WB4BB (Advanced)
- Last granted
- Jul 10, 2010
- Effective
- Jul 10, 2010
- Last action
- Dec 2, 2011
FCC actions (3)
- Dec 2, 2011 — License canceled LICAN
- Jul 10, 2010 — Vanity call sign granted VANGRT
- Jul 10, 2010 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- NI3C (Advanced)
- Last granted
- Sep 11, 2007
- Effective
- Sep 11, 2007
- Last action
- Jul 10, 2010
FCC actions (3)
- Jul 10, 2010 — License canceled LICAN
- Sep 11, 2007 — Vanity call sign granted VANGRT
- Sep 11, 2007 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- WA4IHR (Advanced)
- Last granted
- Aug 1, 2006
- Effective
- Aug 1, 2006
- Last action
- Sep 11, 2007
FCC actions (3)
- Sep 11, 2007 — License canceled LICAN
- Aug 1, 2006 — Vanity call sign granted VANGRT
- Aug 1, 2006 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- K8YJ (Advanced)
- Last granted
- Apr 2, 2004
- Effective
- Apr 2, 2004
- Last action
- Aug 1, 2006
FCC actions (3)
- Aug 1, 2006 — License canceled LICAN
- Apr 2, 2004 — Vanity call sign granted VANGRT
- Apr 2, 2004 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- W4EFB (Advanced)
- Last granted
- Feb 11, 2003
- Effective
- Feb 11, 2003
- Last action
- Apr 2, 2004
FCC actions (3)
- Apr 2, 2004 — License canceled LICAN
- Feb 11, 2003 — Vanity call sign granted VANGRT
- Feb 11, 2003 — License issued LIISS
-
- Licensee
- CHARLES N KAEFF JR
- Address
- 38 JUAREZ CIR
COVINGTON, KY 41017
- FRN
- 0002659795
- Previous call
- WA4HCC (Advanced)
- Last granted
- Feb 12, 1997
- Effective
- Feb 12, 1997
- Last action
- Feb 11, 2003
FCC actions (1)
- Feb 11, 2003 — License canceled LICAN
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Apr 16, 2022 → Oct 4, 2026 · 13 snapshots · as KX4SW
CHARLES N KAEFF JR
2468 Bantam Road, Bethel, OH 45106 - Seen Apr 16, 2022 → Oct 4, 2026 · 114 snapshots · as AD8ER
CHARLES N KAEFF JR
38 Juarez Circle, Covington, KY 41017 - Seen Nov 7, 2004 → Oct 4, 2026 · 574 snapshots · as W4EFB
CHARLES N KAEFF JR
38 JUAREZ CIR, COVINGTON, KY 41017
Others requesting NK4US
2 applications listed NK4US as a choice, newest first.
| Filed | Award | Applicant | Choice # | Status |
|---|---|---|---|---|
| Apr 4, 2022 | Apr 22, 2022 | KO4HDA · Thomas W McBroom Sr · Sharpsburg, GA | 18 | Dismissed |
| Nov 16, 2015 | Dec 4, 2015 | W4EFB · CHARLES N KAEFF JR · COVINGTON, KY | 1 | Granted |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for NK4US in the last 24 hours. They show up here within seconds of NK4US beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.