N9TPB FCC License Search

🕒 FCC license data updated today 9:45 am CDT · 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

W3DUH HAM

✅ Available for a vanity request — free since Feb 15, 2022.

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

📬 QSL: LoTW user · last upload Nov 1, 2021 · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Feb 15, 2022

Previous holder: Sharon K Dobson Memorial Club

Held W3DUH May 7, 2019 → Feb 14, 2020 · first licensed Dec 18, 2018 as KC3MPY · 3 licenses · FRN 0028090520

📦 Moved: Reisterstown, MD → Glyndon, MD

K3DUH Active Club / other · vanity Feb 14, 2020 → expires Feb 14, 2030

Licensee
Sharon K Dobson Memorial Club

Address
Attn: WILLIAM A DOBSON III
PO Box 3626
Glyndon, MD 21071
39.4838, -76.8104 (ZIP center) · Grid FM19ol · CQ 5 · ITU 8 · map ↗

Previous call
W3DUH

Trustee
N3WD

Last granted
Feb 14, 2020

Effective
May 19, 2025

Last action
Mar 17, 2026
FCC actions (4)
- May 19, 2025 — Administrative update LIAUA
- Feb 7, 2022 — Administrative update LIAUA
- Feb 14, 2020 — Vanity call sign granted VANGRT
- Feb 14, 2020 — License issued LIISS
W3DUH Canceled Club / other · vanity May 7, 2019 → Feb 14, 2020 (canceled)

Licensee
Sharon K Dobson Memorial Club

Address
Attn: WILLIAM A DOBSON III
12315 Boncest Dr
Reisterstown, MD 21136
39.4391, -76.8445 (ZIP center) · Grid FM19nk · CQ 5 · ITU 8 · map ↗

FRN
0028090520

Previous call
KC3MPY

Trustee
N3WD

Last granted
May 7, 2019

Effective
May 7, 2019

Last action
Feb 14, 2020
FCC actions (3)
- Feb 14, 2020 — License canceled LICAN
- May 7, 2019 — Vanity call sign granted VANGRT
- May 7, 2019 — License issued LIISS
KC3MPY Canceled Club / other Dec 18, 2018 → May 7, 2019 (canceled)

Licensee
Sharon K Dobson Memorial Club

Address
Attn: WILLIAM A DOBSON III
12315 Boncest Dr
Reisterstown, MD 21136
39.4391, -76.8445 (ZIP center) · Grid FM19nk · CQ 5 · ITU 8 · map ↗

FRN
0028090520

Trustee
N3WD

Last granted
Dec 18, 2018

Effective
Dec 18, 2018

Last action
May 7, 2019
FCC actions (3)
- May 7, 2019 — License canceled LICAN
- Dec 18, 2018 — License issued LIISS
- Dec 18, 2018 — 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 May 29, 2025 → Oct 4, 2026 · 4 snapshots · as K3DUH
Sharon K Dobson Memorial Club
Attn: WILLIAM A DOBSON III
PO Box 3626
Glyndon, MD 21071
39.4838, -76.8104 (ZIP center) · Grid FM19ol · CQ 5 · ITU 8 · map ↗
Seen Jan 22, 2019 → Oct 4, 2026 · 28 snapshots · as KC3MPY
Sharon K Dobson Memorial Club
Attn: WILLIAM A DOBSON III
12315 Boncest Dr, Reisterstown, MD 21136
39.4391, -76.8445 (ZIP center) · Grid FM19nk · CQ 5 · ITU 8 · map ↗
Seen Apr 16, 2022 → Apr 25, 2025 · 9 snapshots · as K3DUH
Sharon K Dobson Memorial Club
Attn: WILLIAM A DOBSON III
PO Box 3626
Glyndon, MD 21701
39.4436, -77.3329 (ZIP center) · Grid FM19ik · CQ 5 · ITU 8 · map ↗

Others requesting W3DUH

4 applications listed W3DUH as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Jun 1, 2026	Jun 19, 2026	KJ5QCC · Jason Costello · New Braunfels, TX	10	Granted
Apr 17, 2019	May 5, 2019	KC3MPY · Sharon K Dobson Memorial Club · Reisterstown, MD	1	Granted
Feb 10, 2014	Feb 28, 2014	KC3AMU · CHRISTOPHER R GAINEY · SHERMANS DALE, PA	8	Granted
Mar 10, 2000	Mar 28, 2000	KB3EQS · PATRICIA A DOBSON · REISTERSTOWN, MD	2	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for W3DUH in the last 24 hours. They show up here within seconds of W3DUH beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.