N9TPB
FCC License Search
🕒 FCC license data updated yesterday 9:42 am CDT (FCC files through Sep 30, 2026) · next update today 6:00 am CDT
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HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WIAI4DF HAM
✅ Available for a vanity request — free since Jun 26, 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 26, 2006
Previous holder: Kiyoshi Matsumoto
Held AI4DF Dec 23, 2003 → Jun 25, 2004 · first licensed Dec 23, 2003 as AI4DF · 2 licenses · FRN 0009946187
-
- Licensee
- Kiyoshi Matsumoto
- Address
- C/o Yutai Kato 100 Dover Lane
Oak Ridge, TN 37830
- FRN
- 0009946187
- Previous call
- AI4DF
- Last granted
- May 3, 2014
- Effective
- May 3, 2014
- Last action
- Jun 26, 2026
FCC actions (5)
- Jun 26, 2026 — License expired LIEXP
- May 3, 2014 — License renewed LIREN
- Apr 26, 2005 — Administrative update LIAUA
- Jun 25, 2004 — Vanity call sign granted VANGRT
- Jun 25, 2004 — License issued LIISS
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- Licensee
- Kiyoshi Matsumoto
- Address
- C/o Yutai Kato 127 Barrington Dr
Oak Ridge, TN 37830-7668
- FRN
- 0009946187
- Last granted
- Dec 23, 2003
- Effective
- Dec 23, 2003
- Last action
- Jun 25, 2004
FCC actions (2)
- Jun 25, 2004 — License canceled LICAN
- Dec 23, 2003 — License issued LIISS
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Others requesting AI4DF
1 application listed AI4DF as a choice, newest first.
| Filed | Award | Applicant | Choice # | Status |
|---|---|---|---|---|
| Sep 26, 2018 | Oct 14, 2018 | AI4WI · Daniel M Floyd · Raleigh, NC | 2 | Granted |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for AI4DF in the last 24 hours. They show up here within seconds of AI4DF beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.