🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 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
📻
Also a GMRS licensee
Active until Aug 19, 2036 · same FCC Registration Number (FRN) · GMRS covers the licensee's immediate family
Technician class
licensed since 2026
N4DMT since 2026 · previously KR4OGS
Summerville, SC
GMRS WSNY601
🔒 Not available — currently licensed, through Sep 19, 2036. If it isn't renewed, it opens for vanity requests Sep 20, 2038.
📬 QSL:
no LoTW uploads on record
· not eQSL AG
· QRZ · HamQTH
📝
N4DMT has filed vanity applications before — latest filed Sep 1, 2026 ·
what was requested
Currently held by David M Tuck
· 3 holders on record
Current holder: David M Tuck
Held N4DMT Sep 19, 2026 → present
· first licensed Aug 11, 2026 as KR4OGS
· 2 licenses · FRN 0038754933
N4DMT
Active
Technician · vanity
Sep 19, 2026 → expires Sep 19, 2036
Licensee David M Tuck
Address PO Box 2635 Summerville, SC 29484
FRN 0038754933
Previous call KR4OGS
Last granted Sep 19, 2026
Effective Sep 19, 2026
Last action Sep 19, 2026
FCC actions (2)
Sep 19, 2026 — Vanity call sign granted VANGRT Sep 19, 2026 — License issued LIISS
KR4OGS
Canceled
Technician
Aug 11, 2026 → Sep 19, 2026 (canceled)
Licensee David M Tuck
Address PO Box 2635 Summerville, SC 29484
FRN 0038754933
Last granted Aug 11, 2026
Effective Aug 12, 2026
Last action Sep 19, 2026
FCC actions (4)
Sep 19, 2026 — License canceled LICAN Aug 12, 2026 — Administrative update LIAUA Aug 11, 2026 — License issued LIISS Aug 11, 2026 — 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 27, 2026 · 2 snapshots · as KR4OGS
David M Tuck
PO Box 2635 Summerville, SC 29484
Previous holder: DONALD M TIDWELL
Held N4DMT Aug 12, 2014 → Aug 12, 2024
· first licensed Jul 21, 2004 as KE4RSV
· 3 licenses · FRN 0011273760
N4DMT
Expired
Technician · vanity
Aug 12, 2014 → Aug 12, 2024 (expired)
Licensee DONALD M TIDWELL
Address 11616 Georgetown Dr. Farragut, TN 37934-3812
35.8762, -84.1800 (ZIP center) · Grid
EM75vv · CQ 4 · ITU 8 ·
map ↗
FRN 0011273760
Previous call KM4BOJ
Last granted Aug 12, 2014
Effective Aug 12, 2014
Last action Aug 15, 2026
FCC actions (3)
Aug 15, 2026 — License expired LIEXP Aug 12, 2014 — Vanity call sign granted VANGRT Aug 12, 2014 — License issued LIISS
KM4BOJ
Canceled
Technician
May 21, 2014 → Aug 12, 2014 (canceled)
Licensee DONALD M TIDWELL
Address 11616 Georgetown Dr. Farragut, TN 37934-3812
35.8762, -84.1800 (ZIP center) · Grid
EM75vv · CQ 4 · ITU 8 ·
map ↗
FRN 0011273760
Previous call KE4RSV
Last granted Jul 22, 2014
Effective Jul 22, 2014
Last action Aug 12, 2014
FCC actions (4)
Aug 12, 2014 — License canceled LICAN Jul 22, 2014 — License renewed LIREN May 21, 2014 — Systematic call sign granted SYSGRT May 21, 2014 — License issued LIISS
KE4RSV
Canceled
Technician
Jul 21, 2004 → May 21, 2014 (canceled)
Licensee DONALD M TIDWELL
Address 11616 Georgetown Dr. Farragut, TN 37934-3812
35.8762, -84.1800 (ZIP center) · Grid
EM75vv · CQ 4 · ITU 8 ·
map ↗
FRN 0011273760
Last granted Jul 21, 2004
Effective Jul 21, 2004
Last action May 21, 2014
FCC actions (2)
May 21, 2014 — License canceled LICAN Jul 21, 2004 — FCC action LITIN
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Mar 28, 2015 → Sep 27, 2026 · 105 snapshots · as KE4RSV
DONALD M TIDWELL
11616 Georgetown Dr., Farragut, TN 37934-3812
35.8762, -84.1800 (ZIP center) · Grid
EM75vv · CQ 4 · ITU 8 ·
map ↗
Seen Nov 7, 2004 → May 22, 2014 · 12 snapshots · as KE4RSV
DONALD M TIDWELL
107 HOLBER RD, HARRIMAN, TN 37748-8532
35.9454, -84.5164 (ZIP center) · Grid
EM75rw · CQ 4 · ITU 8 ·
map ↗
Previous holder: ALICE F CAMPBELL
Held N4DMT Jul 5, 1995 → Jul 5, 2005
· first licensed Jul 5, 1995 as N4DMT
· 1 license · no FRN on file (pre-2001 records)
N4DMT
Expired
Technician Plus
Jul 5, 1995 → Jul 5, 2005 (expired)
Licensee ALICE F CAMPBELL
Address 112 MARGARET ST TALLADEGA, AL 35160
33.3634, -86.1107 (ZIP center) · Grid
EM63wi · CQ 4 · ITU 8 ·
map ↗
Last granted Jul 5, 1995
Effective Jul 5, 1995
Last action Jul 6, 2007
FCC actions (1)
Jul 6, 2007 — License expired LIEXP
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Sep 27, 2026 · 47 snapshots · as N4DMT
ALICE F CAMPBELL
112 MARGARET ST, TALLADEGA, AL 35160
33.3634, -86.1107 (ZIP center) · Grid
EM63wi · CQ 4 · ITU 8 ·
map ↗
Vanity applications filed by N4DMT
Calls this licensee has asked the FCC for, newest first, in their order of preference. The FCC processes applications 18 days after filing; "likely award" is our estimate from every pending application in filing order.
Filed · Award Applicant Requested (in order) Status
Filed Sep 1, 2026
Granted Sep 19, 2026
0012171080
KR4OGS · David M Tuck
· Technician
PO Box 2635 · Summerville, SC 29484
Granted
Filed Aug 12, 2026
Granted Sep 19, 2026
0012149768
KR4OGS · David M Tuck
· Technician
PO Box 2635 · Summerville, SC 29484
Dismissed
Others requesting N4DMT
4 applications listed N4DMT as a choice, newest first.
Filed Award Applicant Choice # Status
Sep 1, 2026
Sep 19, 2026
KR4OGS · David M Tuck · Summerville, SC
1 Granted Aug 12, 2026
Aug 30, 2026
KR4OGS · David M Tuck · Summerville, SC
1 Dismissed Feb 7, 2022
Feb 25, 2022
KO4WKZ · Diego Medina Huttemann · Harrisburg, NC
18 Granted Jul 25, 2014
Aug 12, 2014
KM4BOJ · DONALD M TIDWELL · Farragut, TN
1 Granted
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for N4DMT in the last 24 hours. They show up here within seconds of N4DMT 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