N9TPB FCC License Search

🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 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

Swamp Rat DX Group

FRN 0018453415 · first licensed Jan 26, 2009 as KJ4JBN · 2 licenses on record

📝 FCC applications (3)

Received	File number	Service	Purpose	Status	Call
Jul 21, 2015	0006886300	HAM	Administrative update	Dismissed	K4DXG
Feb 2, 2009	0003723537	HAM	Modification	Granted	KJ4JBN
Jan 26, 2009	0003715412	HAM	New license	Granted	KJ4JBN

Complete licensing history

K4DXG Expired Club / other · vanity Feb 20, 2009 → Feb 20, 2019 (expired)

Licensee
Swamp Rat DX Group

Address
PO Box 680
Clarcona, FL 32710

FRN
0018453415

Previous call
KJ4JBN

Trustee
KK3Q

Last granted
Feb 20, 2009

Effective
Feb 20, 2009

Last action
Feb 23, 2021
FCC actions (3)
- Feb 23, 2021 — License expired LIEXP
- Feb 20, 2009 — Vanity call sign granted VANGRT
- Feb 20, 2009 — License issued LIISS
KJ4JBN Canceled Club / other Jan 26, 2009 → Feb 20, 2009 (canceled)

Licensee
Swamp Rat DX Group

Address
PO Box 680
Clarcona, FL 32710

FRN
0018453415

Trustee
KK3Q

Last granted
Jan 26, 2009

Effective
Jan 26, 2009

Last action
Feb 20, 2009
FCC actions (3)
- Feb 20, 2009 — License canceled LICAN
- Jan 26, 2009 — License issued LIISS
- Jan 26, 2009 — 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 · 94 snapshots · as KJ4JBN
Swamp Rat DX Group
PO Box 680
Clarcona, FL 32710

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Feb 2, 2009 Award date was Feb 20, 2009 0003723537	KJ4JBN · Swamp Rat DX Group · PO Box 680 · Clarcona, FL 32710	1.K4DXG held	Granted