N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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

N9TDX HAM

✅ Available for a vanity request — free since Mar 28, 2003.

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

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Mar 28, 2003

Previous holder: Mark S Seidler

Held N9TDX Jun 30, 1999 → Mar 27, 2001 · first licensed Jun 30, 1999 as N9TDX · 2 licenses · FRN 0002960656

📦 Moved: Seminole, FL → New Port Richey, FL

N9XK Active Amateur Extra · vanity Mar 27, 2001 → expires Apr 27, 2031

Licensee
Mark S Seidler

Address
6740 Pomander Ave.
New Port Richey, FL 34653
28.2611, -82.7034 (street) · Grid EL88pg · CQ 5 · ITU 8 · map ↗

FRN
0002960656

Previous call
N9TDX (General)

Last granted
Jan 28, 2021

Effective
Jan 28, 2021

Last action
Jan 28, 2021
FCC actions (4)
- Jan 28, 2021 — License renewed LIREN
- Apr 27, 2011 — License renewed LIREN
- Apr 16, 2005 — Administrative update LIAUA
- Mar 27, 2001 — License issued LIISS
N9TDX Canceled Amateur Extra Jun 30, 1999 → Mar 27, 2001 (canceled)

Licensee
Mark S Seidler

Address
10863 87th Avenue North
Seminole, FL 33772-3812
27.8436, -82.7967 (ZIP center) · Grid EL87ou · CQ 5 · ITU 8 · map ↗

FRN
0002960656

Last granted
Jun 30, 1999

Effective
Mar 7, 2001

Last action
Mar 27, 2001
FCC actions (4)
- Mar 27, 2001 — License canceled LICAN
- Mar 7, 2001 — License modified LIMOD
- May 12, 2000 — License modified LIMOD
- Mar 3, 2000 — License modified LIMOD

Address history

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

Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as N9XK
Mark S Seidler
6740 Pomander Ave., New Port Richey, FL 34653
28.2611, -82.7034 (street) · Grid EL88pg · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Oct 4, 2026 · 49 snapshots · as N9TDX
Mark S Seidler
10863 87th Avenue North, Seminole, FL 33772-3812
27.8436, -82.7967 (ZIP center) · Grid EL87ou · CQ 5 · ITU 8 · map ↗

Others requesting N9TDX

1 application listed N9TDX as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
May 7, 2018	May 25, 2018	KD9KPJ · Marvin F St Clair · Geneva, IN	7	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for N9TDX in the last 24 hours. They show up here within seconds of N9TDX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.