N9TPB FCC License Search

🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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, WI

K4FMZ

✅ Available for a vanity request — free since Mar 12, 2018.

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

📬 QSL: not on LoTW · eQSL AG member

Not currently held · 1 holder on record · available since Mar 12, 2018

Previous holder: DONALD J IMHOFF

Held K4FMZ Dec 18, 2007 → Mar 11, 2016 · first licensed Nov 15, 1994 as KE4STB · 5 licenses · FRN 0004705935

📦 Moved: Euless, TX → Arcadia, OK

W5DON Active General · vanity Mar 11, 2016 → expires Mar 11, 2036

Licensee
DONALD J IMHOFF

Address
8701 CHERRY BLOSSOM RD
ARCADIA, OK 73007-7540
35.6856, -97.3694 (street) · Grid EM15hq · CQ 4 · ITU 7 · map ↗

FRN
0004705935

Previous call
K4FMZ (Technician)

Last granted
Apr 4, 2026

Effective
May 4, 2026

Last action
May 4, 2026
FCC actions (7)
- May 4, 2026 — FCC action LIAUA
- Apr 4, 2026 — License renewed LIREN
- May 5, 2021 — FCC action LIAUA
- Mar 12, 2021 — FCC action LIAUA
- Jan 11, 2018 — FCC action LIAUA
- Mar 11, 2016 — Vanity call sign granted VANGRT
- Mar 11, 2016 — License issued LIISS
📦 Moved: Palm Beach Gardens, FL → Euless, TX

K4FMZ Canceled General · vanity Dec 18, 2007 → Mar 11, 2016 (canceled)

Licensee
Donald J Imhoff

Address
1100 Marshall Drive
Euless, TX 76039
32.8603, -97.0860 (ZIP center) · Grid EM12ku · CQ 4 · ITU 7 · map ↗

FRN
0004705935

Previous call
KE4STB (Technician)

Last granted
Dec 18, 2007

Effective
Feb 19, 2016

Last action
Mar 11, 2016
FCC actions (8)
- Mar 11, 2016 — License canceled LICAN
- Feb 19, 2016 — FCC action LIAUA
- Nov 4, 2014 — FCC action LIAUA
- Jan 23, 2013 — FCC action LIAUA
- Jul 2, 2009 — License modified LIMOD
- Jun 24, 2008 — FCC action LIAUA
- Dec 18, 2007 — Vanity call sign granted VANGRT
- Dec 18, 2007 — License issued LIISS
📦 Moved: Paducah, KY → Palm Beach Gardens, FL

KE4STB Canceled Technician · vanity Jan 23, 2004 → Dec 18, 2007 (canceled)

Licensee
Donald J Imhoff

Address
2000 Portofino Circle, Apt. 109
Palm Beach Gardens, FL 33418
26.8727, -80.1657 (ZIP center) · Grid EL96wu · CQ 5 · ITU 8 · map ↗

FRN
0004705935

Previous call
W4FFG

Last granted
Jan 23, 2004

Effective
Jul 11, 2007

Last action
Dec 18, 2007
FCC actions (6)
- Dec 18, 2007 — License canceled LICAN
- Jul 11, 2007 — FCC action LIAUA
- Jul 25, 2006 — FCC action LIAUA
- Nov 3, 2005 — FCC action LIAUA
- Jan 23, 2004 — Vanity call sign granted VANGRT
- Jan 23, 2004 — License issued LIISS
W4FFG Canceled Technician · vanity Jun 20, 2003 → Jan 23, 2004 (canceled)

Licensee
DONALD J IMHOFF

Address
221 Calvert Drive
Paducah, KY 42003
37.0048, -88.5779 (ZIP center) · Grid EM57ra · CQ 4 · ITU 8 · map ↗

FRN
0004705935

Previous call
KE4STB

Last granted
Jun 20, 2003

Effective
Jun 20, 2003

Last action
Jan 23, 2004
FCC actions (3)
- Jan 23, 2004 — License canceled LICAN
- Jun 20, 2003 — Vanity call sign granted VANGRT
- Jun 20, 2003 — License issued LIISS
KE4STB Canceled Technician Nov 15, 1994 → Jun 20, 2003 (canceled)

Licensee
DONALD J IMHOFF

Address
221 Calvert Drive
PADUCAH, KY 42003
37.0048, -88.5779 (ZIP center) · Grid EM57ra · CQ 4 · ITU 8 · map ↗

FRN
0004705935

Last granted
Nov 15, 1994

Effective
Jun 12, 2003

Last action
Jun 20, 2003
FCC actions (2)
- Jun 20, 2003 — License canceled LICAN
- Jun 12, 2003 — FCC action LIAUA

Address history

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

Seen Sep 27, 2026 · 1 snapshot · as W5DON
DONALD J IMHOFF
8701 CHERRY BLOSSOM RD, ARCADIA, OK 73007-7540
35.6856, -97.3694 (street) · Grid EM15hq · CQ 4 · ITU 7 · map ↗
Seen Feb 26, 2016 → Sep 27, 2026 · 37 snapshots · as K4FMZ
Donald J Imhoff
1100 Marshall Drive, Euless, TX 76039
32.8603, -97.0860 (ZIP center) · Grid EM12ku · CQ 4 · ITU 7 · map ↗
Seen May 27, 2010 → Sep 27, 2026 · 46 snapshots · as KE4STB
Donald J Imhoff
2000 Portofino Circle, Apt. 109, Palm Beach Gardens, FL 33418
26.8727, -80.1657 (ZIP center) · Grid EL96wu · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Sep 27, 2026 · 95 snapshots · as KE4STB
DONALD J IMHOFF
221 Calvert Drive, PADUCAH, KY 42003
37.0048, -88.5779 (ZIP center) · Grid EM57ra · CQ 4 · ITU 8 · map ↗
Seen Apr 16, 2022 → Sep 25, 2025 · 11 snapshots · as W5DON
Donald J Imhoff
8701 Cherry Blossom Road, Arcadia, OK 73007
35.6854, -97.3275 (ZIP center) · Grid EM15iq · CQ 4 · ITU 7 · map ↗
Seen May 7, 2018 → May 6, 2019 · 4 snapshots · as W5DON
Donald J Imhoff
900 Dove Trail, Euless, TX 76039
32.8603, -97.0860 (ZIP center) · Grid EM12ku · CQ 4 · ITU 7 · map ↗
Seen Mar 28, 2015 → Feb 16, 2016 · 8 snapshots · as K4FMZ
Donald J Imhoff
200 W. 15th Street, Apt. 108, Edmond, OK 73013
35.6170, -97.5008 (ZIP center) · Grid EM15fo · CQ 4 · ITU 7 · map ↗
Seen Feb 18, 2013 → May 22, 2014 · 6 snapshots · as K4FMZ
Donald J Imhoff
615 S. Quincy Street, Clinton, IL 61727
40.1468, -88.9532 (ZIP center) · Grid EN50md · CQ 4 · ITU 8 · map ↗
Seen May 27, 2010 → Jul 26, 2012 · 5 snapshots · as K4FMZ
Donald J Imhoff
1541 Clapton Drive, Deland, FL 32720
29.0333, -81.3748 (ZIP center) · Grid EL99ha · CQ 5 · ITU 8 · map ↗

Others requesting K4FMZ

4 applications listed K4FMZ as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Apr 12, 2021	Apr 30, 2021	KI4SZZ · Floyd E Mason · Denver, NC	4	Granted
Nov 29, 2007	Dec 17, 2007	KE4STB · Donald J Imhoff · Palm Beach Gardens, FL	1	Granted
Jun 2, 2003	Jun 20, 2003	KE4STB · DONALD J IMHOFF · Paducah, KY	7	Granted
Apr 15, 2002	May 3, 2002	KG4RBM · EUGENE C HEREFORD · TITUSVILLE, FL	7	Granted