N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 12, 2026) · next update today 9:45 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

George G Marvin

FRN 0003868130 · first licensed Sep 29, 2000 as N5DZX · 2 licenses on record

📻 GMRS Licenses on This FRN

GMRS call	Status	Name	Location	Granted	Expires
WSOF525	Active	George G Marvin	Mandan, ND	Sep 15, 2026	Sep 15, 2036

📝 FCC Applications (15)

Received	File number	Service	Purpose	Status	Call
Sep 14, 2026	0012182697	GMRS	New license	Granted
Apr 19, 2021	0009500820	HAM	Modification	Dismissed	N5DZX
Apr 6, 2021	0009483886	HAM	Modification	Granted	N5DZX
Mar 19, 2021	0009461472	HAM	Modification	Dismissed	N5DZX
Mar 15, 2021	0009451781	HAM	Modification	Dismissed	N5DZX
Feb 22, 2021	0009423542	HAM	Modification	Dismissed	N5DZX
Jan 29, 2021	0009393976	HAM	Modification	Dismissed	N5DZX
Jul 13, 2015	0006872395	HAM	Administrative update	Granted	N5DZX
Oct 25, 2013	0005984278	HAM	Administrative update	Granted	N5DZX
Mar 25, 2013	0005704982	HAM	Renewal	Granted	N5DZX
Feb 23, 2012	0005089912	HAM	Administrative update	Granted	N5DZX
May 4, 2006	0002593259	HAM	Administrative update	Granted	N5DZX
Apr 14, 2003	0001273899	HAM	Renewal	Granted	N5DZX
Nov 13, 2000	0000264419	HAM	Renewal	Dismissed	N5DZX
Sep 28, 2000	0000229553	HAM	Modification	Granted	N5DZX

Complete Licensing History

W0GX Active Amateur Extra · vanity Apr 24, 2021 → expires Apr 24, 2031

Licensee
George G Marvin

Address
Attn: George G Marvin
PO Box 802
Mandan, ND 58554
46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗

FRN
0003868130

Previous call
N5DZX (Technician Plus)

Last granted
Apr 24, 2021

Effective
Apr 24, 2021

Last action
May 20, 2025
FCC actions (2)
- Apr 24, 2021 — Vanity call sign granted VANGRT
- Apr 24, 2021 — License issued LIISS
N5DZX Canceled Amateur Extra Sep 29, 2000 → Apr 24, 2021 (canceled)

Licensee
George G Marvin

Address
Attn: George G Marvin
PO Box 802
Mandan, ND 58554
46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗

FRN
0003868130

Previous call
KA5LYD (Technician Plus)

Last granted
Mar 26, 2013

Effective
Jul 14, 2015

Last action
Apr 24, 2021
FCC actions (8)
- Apr 24, 2021 — License canceled LICAN
- Jul 14, 2015 — Administrative update LIAUA
- Oct 26, 2013 — Administrative update LIAUA
- Mar 26, 2013 — License renewed LIREN
- Feb 24, 2012 — Administrative update LIAUA
- May 4, 2006 — Administrative update LIAUA
- Apr 14, 2003 — License renewed LIREN
- Sep 29, 2000 — License modified LIMOD

Address history

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

Seen Aug 2, 2015 → Oct 11, 2026 · 48 snapshots · as N5DZX
George G Marvin
Attn: George G Marvin
PO Box 802
Mandan, ND 58554
46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗
Seen Mar 28, 2014 → Jun 6, 2015 · 5 snapshots · as N5DZX
George G Marvin
Attn: George G Marvin
PO Box 769
Windsor, CO 80550
40.4888, -104.8997 (ZIP center) · Grid DN70nl · CQ 4 · ITU 7 · map ↗
Seen May 28, 2012 → Oct 22, 2013 · 6 snapshots · as N5DZX
George G Marvin
Attn: George G Marvin
PO Box 1505
Watertown, SD 57201-6505
44.9367, -97.0928 (ZIP center) · Grid EN14kw · CQ 4 · ITU 7 · map ↗
Seen May 27, 2010 → Nov 10, 2011 · 3 snapshots · as N5DZX
George G Marvin
PO Box 147
Albany, OR 97321-0045
44.6534, -123.1395 (ZIP center) · Grid CN84kp · CQ 3 · ITU 6 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as N5DZX
GEORGE G MARVIN
PO Box 1341
BLUE SPRINGS, MO 64013

Nets

Net	When	Frequency	Role	Times	Last
OMISS 20m SSB Net	Daily 12:30 PM UTC	14.290	Checked in	1	2026-10-12

From nets logged with NetLogger since the start of collection.

Repeaters within 50 Miles

13 repeaters within 50 miles of this ZIP code, most active 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 · center is the ZIP code (approximate) · 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)

Miles	Call	Name	Output	Offset	Tone	Mode	Activity	Location
7.2	N0FAZ	Mandan Old Red N0FAZ	52.5250	simplex	none	FM (analog)	—	Mandan, ND
7.2	W0ZRT	Mandan W0ZRT	146.9400	-0.6	none	FM (analog)	—	Mandan, ND
7.2	N0FAZ	Mandan Old Red N0FAZ	444.2000	+5	TONE 103.5	FM (analog)	—	Mandan, ND
8.6	KC0AHL	Bismarck KC0AHL	444.6500	+5	TONE 107.2	FM (analog) (FM,C4FM)	—	Bismarck, ND
9.4	KF0NFI	Bismarck KF0NFI	443.1000	+5	CC0	DMR	—	Bismarck, ND
9.7	N0FAZ	Bismarck N0FAZ	224.2000	-1.6	TONE 103.5	FM (analog)	—	Bismarck, ND
12.3	W0ZRT	Bismarck KFYR W0ZRT	146.8500	-0.6	TONE 107.2	FM (analog)	—	Bismarck, ND
25.2	K0AVI	Bismarck K0AVI	443.5750	+5	none	FM (analog) (FM,C4FM)	—	Bismarck, ND
25.5	K6STS Offline	Bismarck K6STS	145.2800	-0.6	TONE 107.2	FM (analog) (FM,C4FM)	—	Bismarck, ND
29.9	KE0VF	Center KE0VF	444.9000	+5	none	FM (analog)	—	Center, ND
40.8	W0ZRT	Wing W0ZRT	446.9000	-5	none	FM (analog)	—	Wing, ND
40.8	W0ZRT	Wing Haystack W0ZRT	446.9500	-5	none	FM (analog)	—	Wing, ND
44.0	W0ZRT	Coal Creek Stati W0ZRT	145.4300	-0.6	TONE 107.2	FM (analog)	—	Coal Creek Station, ND

Vanity Applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Apr 19, 2021 Award date was May 7, 2021 0009500820	N5DZX · George G Marvin · Amateur Extra Attn: George G Marvin · PO Box 802 · Mandan, ND 58554 46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗	1.W0OK Held by Daniel Seffens until May 7, 2031	Dismissed
Filed Apr 6, 2021 Granted Apr 24, 2021 0009483886	N5DZX · George G Marvin · Amateur Extra Attn: George G Marvin · PO Box 802 · Mandan, ND 58554 46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗	1.W0GX ✓ Granted 2.N0UM Held by George J Hopkins until Apr 24, 2031	Granted got W0GX
Filed Mar 19, 2021 Award date was Apr 6, 2021 0009461472	N5DZX · George G Marvin · Amateur Extra Attn: George G Marvin · PO Box 802 · Mandan, ND 58554 46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗	1.N0OZ Held by ARIEL R ECHEVARRIA until Jun 2, 2033	Dismissed
Filed Mar 15, 2021 Award date was Apr 2, 2021 0009451781	N5DZX · George G Marvin · Amateur Extra Attn: George G Marvin · PO Box 802 · Mandan, ND 58554 46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗	1.K0FY Held by Norman C Michaels until Mar 30, 2031	Dismissed
Filed Feb 22, 2021 Award date was Mar 12, 2021 0009423542	N5DZX · George G Marvin · Amateur Extra Attn: George G Marvin · PO Box 802 · Mandan, ND 58554 46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗	1.K0FM Held by Larry J Stambaugh until Mar 12, 2031	Dismissed
Filed Jan 29, 2021 Award date was Feb 16, 2021 0009393976	N5DZX · George G Marvin · Amateur Extra Attn: George G Marvin · PO Box 802 · Mandan, ND 58554 46.7557, -100.9487 (ZIP center) · Grid DN96ms · CQ 4 · ITU 7 · map ↗	1.K0GG Held by Zachary F Mulholland until Feb 23, 2028 2.K0OK Held by ROBERT D NOVAK until Jan 13, 2027 3.W0XX Held by Amateur Radio Xperimenters until Dec 18, 2030 4.K0TX Held by Denis Grisak until Feb 17, 2031 5.W0EE Held by Roderick A Rothbauer until Jul 8, 2027 6.W0TV Held by David M Worrell until Jun 16, 2030	Dismissed