N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 5, 2026) · next update today 8:30 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

WROX518 GMRS 📡 HAM

📡

Also a licensed HAM

K9RJN

General class · same FCC Registration Number (FRN)

Current holder: Ralph J Niederhofer

General Mobile Radio Service license · held by Ralph J Niederhofer · Centralia, IL · FRN 0018551226

Status	Active
Granted	Dec 28, 2021
Expires	Dec 28, 2031
Mailing address	8 Gayla Ave, Centralia, IL 62801

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

📻 GMRS repeaters within 50 miles

5 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
11	RP15	462.550	141.3	WSDR538	Salem, IL	Open	On the air
18	RP15	462.550	—	WRWS550	Keyesport, IL	Closed	On the air
42	RP20	462.675	127.3	WROC706	Freeburg, IL	Open	On the air
49	RP19	462.650	82.5	WSGV743	Ava, IL	Open	On the air
49	RP16	462.575	179.9	WRZY273	Collinsville, IL	Closed	On the air

📡 Amateur radio licenses on the same FRN

Call	Status	Class	Name	Location	Granted	Expires
K9RJN	Active	General	Ralph J Niederhofer	Centralia, IL	Oct 16, 2019	Dec 29, 2029
KC9PDW	Canceled	Technician	Ralph J Niederhofer	Centralia, IL	Feb 27, 2009	Feb 27, 2019

📜 License history

Date	FCC action
Dec 28, 2021	License issued

🏠 Address history

Every address Ralph J Niederhofer gave the FCC on a GMRS filing, newest first.

Filed from	Address	On a
Dec 27, 2021	8 Gayla Ave, Centralia, IL 62801	New license

📝 GMRS applications filed

Received	File number	Purpose	Result	Filed from
Dec 27, 2021	0009844036	New license	Granted	Centralia, IL

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