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, WIKJ4AXO HAM
✅ Available for a vanity request — free since Feb 27, 2010.
2x3 call: any licensee 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 Feb 27, 2010
Previous holder: John B Knox
Held KJ4AXO Dec 5, 2007 → Feb 26, 2008 · first licensed Dec 5, 2007 as KJ4AXO · 2 licenses · FRN 0017198599
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📦 Moved: Watertown, TN → Sparta, TN
- Licensee
- John B Knox
- Address
- 541 Clarks Mill Drive
Sparta, TN 38583
- FRN
- 0017198599
- Previous call
- KJ4AXO (General)
- Last granted
- Mar 29, 2018
- Effective
- Apr 3, 2018
- Last action
- Apr 3, 2018
FCC actions (5)
- Apr 2, 2018 — Administrative update LIAUA
- Mar 29, 2018 — License renewed LIREN
- Aug 14, 2008 — License modified LIMOD
- Feb 26, 2008 — Vanity call sign granted VANGRT
- Feb 26, 2008 — License issued LIISS
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- Licensee
- John B Knox
- Address
- 628 Roberts Rd
Watertown, TN 37184
- FRN
- 0017198599
- Last granted
- Dec 5, 2007
- Effective
- Feb 6, 2008
- Last action
- Feb 26, 2008
FCC actions (4)
- Feb 26, 2008 — License canceled LICAN
- Feb 6, 2008 — License modified LIMOD
- Dec 5, 2007 — License issued LIISS
- Dec 5, 2007 — Systematic call sign granted SYSGRT
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KJ4AXO in the last 24 hours. They show up here within seconds of KJ4AXO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.