N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 1, 2026) · next update today 8:30 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

AB1DF HAM

✅ Available for a vanity request — free since Jun 3, 2006.

2x2 call: only Amateur Extra licensees can request it. No pending applications list it.

Not currently held · 1 holder on record · available since Jun 3, 2006

Previous holder: Sadakazu Tanabe

Held AB1DF Mar 4, 2004 → Jun 2, 2004 · first licensed Mar 4, 2004 as AB1DF · 2 licenses · FRN 0010504736

KG1K Active Amateur Extra · vanity Jun 2, 2004 → expires Jun 2, 2034

Licensee
Sadakazu Tanabe

Address
37 Sheffield Street
Hudson, NH 03051
42.7733, -71.3868 (street) · Grid FN42hs · CQ 5 · ITU 8 · map ↗

FRN
0010504736

Previous call
AB1DF

Last granted
Mar 6, 2024

Effective
Mar 6, 2024

Last action
Mar 6, 2024
FCC actions (5)
- Mar 6, 2024 — License renewed LIREN
- Mar 11, 2014 — License renewed LIREN
- Sep 20, 2007 — Administrative update LIAUA
- Jun 2, 2004 — Vanity call sign granted VANGRT
- Jun 2, 2004 — License issued LIISS
AB1DF Canceled Amateur Extra Mar 4, 2004 → Jun 2, 2004 (canceled)

Licensee
Sadakazu Tanabe

Address
22 Friars Dr
Hudson, NH 03051
42.7605, -71.4094 (ZIP center) · Grid FN42hs · CQ 5 · ITU 8 · map ↗

FRN
0010504736

Last granted
Mar 4, 2004

Effective
Mar 4, 2004

Last action
Jun 2, 2004
FCC actions (2)
- Jun 2, 2004 — License canceled LICAN
- Mar 4, 2004 — License issued LIISS

Address history

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

Seen May 27, 2010 → Sep 27, 2026 · 46 snapshots · as KG1K
Sadakazu Tanabe
37 Sheffield Street, Hudson, NH 03051
42.7733, -71.3868 (street) · Grid FN42hs · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Sep 27, 2026 · 48 snapshots · as AB1DF
Sadakazu Tanabe
22 Friars Dr, Hudson, NH 03051
42.7605, -71.4094 (ZIP center) · Grid FN42hs · CQ 5 · ITU 8 · map ↗

Others requesting AB1DF

2 applications listed AB1DF as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Sep 24, 2025	Oct 12, 2025	KC1YJI · Daniel Finch · Millville, MA	1	Granted
Aug 4, 2015	Aug 22, 2015	K1SQC · Susan L Carlson · Bradford, MA	4	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for AB1DF in the last 24 hours. They show up here within seconds of AB1DF beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.