N9TPB FCC License Search

🕒 FCC license data updated yesterday 9:45 am CDT · 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

WSKW551 GMRS 📡 HAM

📡

Also a licensed HAM

KF4SS

Amateur Extra class · same FCC Registration Number (FRN)

Current holder: Robert L Madderra

General Mobile Radio Service license · held by Robert L Madderra · Atlanta, GA · FRN 0012294336

Status	Active
Granted	Dec 23, 2025
Expires	Dec 23, 2035
Mailing address	8100 River Cir, Atlanta, GA 30350

A GMRS license covers the licensee's immediate family, and lasts 10 years.

📻 GMRS repeaters within 50 miles

14 on the air or of unknown status, closest first · map these & export for a GMRS radio →

Miles	Channel	Output	Tone in	Owner	Location	Access	Status
8	RP18	462.625	—	WQYU407	Chamblee, GA	Closed	On the air
14	RP16	462.575	—	WSBR950	Woodstock, GA	Closed	On the air
29	RP17	462.600	D365	WSEM262	Gainesville, GA · Lanierland park	Open	On the air
29	RP22	462.725	107.2	WRCA741	Canton, GA · Pine Log Mountain	Closed	On the air
29	RP22	462.725	D411	WQZC882	Waleska, GA · Pine Log Mountian	Open	On the air
30	RP16	462.575	—	WQYU407	Ball Ground, GA	Closed	On the air
37	RP18	462.625	103.5	WSEM262	Jasper, GA · Mount Oglethorpe	Open	On the air
37	RP20	462.675	—	WQYU407	Jasper, GA	Closed	On the air
38	RP22	462.725	—	WQYU407	Mcdonough, GA	Closed	On the air
38	RP15	462.550	—	WQYU407	Jasper, GA	Closed	On the air
41	RP15	462.550	—	WRMG494	Rockmart, GA	Open	On the air
43	RP16	462.575	—	WQYU407	Draketown, GA · Dallas	Closed	On the air
45	RP19	462.650	—	WQYU407	Newnan, GA	Closed	On the air
45	RP16	462.575	—	WSKJ269	Aragon, GA	Closed	On the air

📡 Amateur radio licenses on the same FRN

Call	Status	Class	Name	Location	Granted	Expires
KF4SS	Active	Extra	Robert L Madderra	Atlanta, GA	Apr 11, 2025	Apr 22, 2035
KI4HZM	Canceled	Extra	Bob L Madderra	Atlanta, GA	Dec 10, 2004	Dec 10, 2014
AI4JS	Canceled	Extra	Bob L Madderra	Atlanta, GA	Dec 10, 2004	Dec 10, 2014

📜 License history

Date	FCC action
Dec 23, 2025	License issued

🏠 Address history

Every address Robert L Madderra gave the FCC on a GMRS filing, newest first.

Filed from	Address	On a
Dec 22, 2025	8100 River Cir, Atlanta, GA 30350	New license

📝 GMRS applications filed

Received	File number	Purpose	Result	Filed from
Dec 22, 2025	0011839115	New license	Granted	Atlanta, GA

GMRS and amateur licenses come from the FCC Universal Licensing System, updated nightly. Licenses are linked by FCC Registration Number (FRN).