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, WIKJ4SWZ HAM
✅ Available for a vanity request — free since May 5, 2012.
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 May 5, 2012
Previous holder: Richard D Mardis
Held KJ4SWZ Mar 9, 2010 → May 4, 2010 · first licensed Mar 9, 2010 as KJ4SWZ · 3 licenses · FRN 0019644228
-
- Licensee
- Richard D Mardis
- Address
- 504 Buckingham Ave W
Oldsmar, FL 34677
- FRN
- 0019644228
- Previous call
- K4PDA (General)
- Last granted
- Jan 4, 2011
- Effective
- Jan 4, 2011
- Last action
- Jan 5, 2023
FCC actions (3)
- Jan 5, 2023 — License expired LIEXP
- Jan 4, 2011 — Vanity call sign granted VANGRT
- Jan 4, 2011 — License issued LIISS
-
- Licensee
- Richard D Mardis
- Address
- 504 Buckingham Ave W
Oldsmar, FL 34677
- FRN
- 0019644228
- Previous call
- KJ4SWZ (General)
- Last granted
- May 4, 2010
- Effective
- Jul 12, 2010
- Last action
- Jan 4, 2011
FCC actions (4)
- Jan 4, 2011 — License canceled LICAN
- Jul 12, 2010 — License modified LIMOD
- May 4, 2010 — Vanity call sign granted VANGRT
- May 4, 2010 — License issued LIISS
-
- Licensee
- Richard D Mardis
- Address
- 504 Buckingham Ave W
Oldsmar, FL 34677
- FRN
- 0019644228
- Last granted
- Mar 9, 2010
- Effective
- Apr 13, 2010
- Last action
- May 4, 2010
FCC actions (4)
- May 4, 2010 — License canceled LICAN
- Apr 13, 2010 — License modified LIMOD
- Mar 9, 2010 — License issued LIISS
- Mar 9, 2010 — 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 27, 2010 → Oct 4, 2026 · 140 snapshots · as KJ4SWZ
Richard D Mardis
504 Buckingham Ave W, Oldsmar, FL 34677
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KJ4SWZ in the last 24 hours. They show up here within seconds of KJ4SWZ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.