🕒 FCC license data updated yesterday 9:45 am CDT · next update today 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
N0MDH HAM
⏳
Not available yet — opens for vanity requests
Mar 25, 2028 , two years after the license was canceled (Mar 24, 2026).
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it.
No pending applications list it.
📬 QSL:
LoTW user · last upload Mar 20, 2026
· not eQSL AG
· QRZ · HamQTH
Not currently held
· 2 holders on record
Previous holder: Michael D Heller
Held N0MDH Apr 7, 2020 → Mar 24, 2026
· first licensed Jan 15, 2020 as KD2THA
· 3 licenses · FRN 0029080660
N5MK
Active
Amateur Extra · vanity
Mar 24, 2026 → expires Mar 24, 2036
Licensee Michael D Heller
Address 50 Forest Rd Glen Rock, NJ 07452
40.9679, -74.1159 (street) · Grid
FN20wx · CQ 5 · ITU 8 ·
map ↗
FRN 0029080660
Previous call N0MDH (General)
Last granted Mar 24, 2026
Effective Mar 24, 2026
Last action Mar 24, 2026
FCC actions (2)
Mar 24, 2026 — Vanity call sign granted VANGRT Mar 24, 2026 — License issued LIISS
N0MDH
Canceled
Amateur Extra · vanity
Apr 7, 2020 → Mar 24, 2026 (canceled)
Licensee Michael D Heller
Address 50 Forest Rd Glen Rock, NJ 07452
40.9679, -74.1159 (street) · Grid
FN20wx · CQ 5 · ITU 8 ·
map ↗
FRN 0029080660
Previous call KD2THA (General)
Last granted Apr 7, 2020
Effective Dec 18, 2025
Last action Mar 24, 2026
FCC actions (4)
Mar 24, 2026 — License canceled LICAN Dec 18, 2025 — License modified LIMOD Apr 7, 2020 — Vanity call sign granted VANGRT Apr 7, 2020 — License issued LIISS
KD2THA
Canceled
General
Jan 15, 2020 → Apr 7, 2020 (canceled)
Licensee Michael D Heller
Address 50 Forest Rd Glen Rock, NJ 07452
40.9679, -74.1159 (street) · Grid
FN20wx · CQ 5 · ITU 8 ·
map ↗
FRN 0029080660
Last granted Jan 15, 2020
Effective Jan 15, 2020
Last action Apr 7, 2020
FCC actions (3)
Apr 7, 2020 — License canceled LICAN Jan 15, 2020 — License issued LIISS Jan 15, 2020 — 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 Apr 16, 2022 → Oct 4, 2026 · 28 snapshots · as KD2THA
Michael D Heller
50 Forest Rd, Glen Rock, NJ 07452
40.9679, -74.1159 (street) · Grid
FN20wx · CQ 5 · ITU 8 ·
map ↗
Previous holder: LARRY C UTTER
Held N0MDH Jun 26, 1990 → Jun 26, 2000
· first licensed Jun 26, 1990 as N0MDH
· 1 license · no FRN on file (pre-2001 records)
N0MDH
Expired
Technician Plus
Jun 26, 1990 → Jun 26, 2000 (expired)
Licensee LARRY C UTTER
Address 1360 SUMAC AVE BOULDER, CO 80304
40.0447, -105.2884 (ZIP center) · Grid
DN70ib · CQ 4 · ITU 7 ·
map ↗
Last granted Jun 26, 1990
Effective Jun 26, 1990
Last action Jun 27, 2002
FCC actions (1)
Jun 27, 2002 — 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 → Oct 4, 2026 · 48 snapshots · as N0MDH
LARRY C UTTER
1360 SUMAC AVE, BOULDER, CO 80304
40.0447, -105.2884 (ZIP center) · Grid
DN70ib · CQ 4 · ITU 7 ·
map ↗
Others requesting N0MDH
1 application listed N0MDH as a choice, newest first.
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for N0MDH in the last 24 hours. They show up here within seconds of N0MDH 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