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

KG4YYX HAM

✅ Available for a vanity request — free since Apr 16, 2005.

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 Apr 16, 2005

Previous holder: Jason B Grinstead

Held KG4YYX Mar 13, 2003 → Apr 15, 2003 · first licensed Mar 13, 2003 as KG4YYX · 2 licenses · FRN 0008609117

W4JBG Expired General · vanity Apr 15, 2003 → Apr 15, 2023 (expired)

Licensee
Jason B Grinstead

Address
2619 BRIDLE DR
PLANT CITY, FL 33566
27.9780, -82.0957 (ZIP center) · Grid EL87wx · CQ 5 · ITU 8 · map ↗

FRN
0008609117

Previous call
KG4YYX (Technician)

Last granted
Jan 18, 2013

Effective
Jan 18, 2013

Last action
Apr 16, 2025
FCC actions (5)
- Apr 16, 2025 — License expired LIEXP
- Jan 18, 2013 — License renewed LIREN
- May 11, 2011 — License modified LIMOD
- Apr 15, 2003 — Vanity call sign granted VANGRT
- Apr 15, 2003 — License issued LIISS
KG4YYX Canceled Technician Mar 13, 2003 → Apr 15, 2003 (canceled)

Licensee
Jason B Grinstead

Address
508 1/2 E Devane St
Plant City, FL 33563
28.0171, -82.1258 (ZIP center) · Grid EL88wa · CQ 5 · ITU 8 · map ↗

FRN
0008609117

Last granted
Mar 13, 2003

Effective
Mar 13, 2003

Last action
Apr 15, 2003
FCC actions (2)
- Apr 15, 2003 — License canceled LICAN
- Mar 13, 2003 — License issued LIISS

Address history

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

Seen Feb 18, 2013 → Oct 4, 2026 · 42 snapshots · as W4JBG
Jason B Grinstead
2619 BRIDLE DR, PLANT CITY, FL 33566
27.9780, -82.0957 (ZIP center) · Grid EL87wx · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Oct 4, 2026 · 50 snapshots · as KG4YYX
Jason B Grinstead
508 1/2 E Devane St, Plant City, FL 33563
28.0171, -82.1258 (ZIP center) · Grid EL88wa · CQ 5 · ITU 8 · map ↗
Seen Oct 17, 2011 → Jul 26, 2012 · 4 snapshots · as W4JBG
Jason B Grinstead
801 W Orient St, Tampa, FL 33603
27.9856, -82.4644 (ZIP center) · Grid EL87sx · CQ 5 · ITU 8 · map ↗

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KG4YYX in the last 24 hours. They show up here within seconds of KG4YYX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.