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

WSLR707 GMRS 📡 HAM

📡

Also a licensed HAM

KR4KKK

Technician class · same FCC Registration Number (FRN)

Current holder: John E Grinwis

General Mobile Radio Service license · held by John E Grinwis · Palm Bay, FL · FRN 0037648284

Status	Active
Granted	Feb 18, 2026
Expires	Feb 18, 2036
Mailing address	736 Cottbus Ave NW, Palm Bay, FL 32907

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

📻 GMRS repeaters within 50 miles

11 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
10	RP21	462.700	136.5	WPUC720	Melbourne, FL	Closed	On the air
12	RP21	462.700	107.2	WROK734	Grant, FL	Open	On the air
18	RP18	462.625	136.5	WSFB468	Merritt Island, FL · Crooked Mile	Open	On the air
20	RP17	462.600	88.5	WRUH896	Cocoa Beach, FL · Snug Harbor	Open	On the air
21	RP22	462.725	141.3	WRAW609	Merritt Island, FL	Open	On the air
23	RP20	462.675	141.3	KAE0182	Cocoa, FL	Open	On the air
24	RP15	462.550	103.5	WRDR470	Harmony, FL · Suburban and Triple N Ranch	Open	On the air
32	RP16	462.575	103.5	WSAT405	Port Saint John, FL · Near The Fpl Power Plant	Open	On the air
32	RP21	462.700	103.5	WSFJ275	Cocoa, FL · Port St John	Open	On the air
36	RP21	462.700	—	WRZI813	Vero Beach, FL	Closed	On the air
50	RP22	462.725	CSQ	WRZB474	Orlando, FL · Dunhill Dr	Open	On the air

📡 Amateur radio licenses on the same FRN

Call	Status	Class	Name	Location	Granted	Expires
KR4KKK	Active	Technician	John E Grinwis	Palm Bay, FL	Aug 21, 2026	Aug 21, 2036
KR4HYR	Canceled	Technician	John E Grinwis	Palm Bay, FL	Dec 4, 2025	Dec 4, 2035

📜 License history

Date	FCC action
Feb 18, 2026	License issued

🏠 Address history

Every address John E Grinwis gave the FCC on a GMRS filing, newest first.

Filed from	Address	On a
Feb 17, 2026	736 Cottbus Ave NW, Palm Bay, FL 32907	New license

📝 GMRS applications filed

Received	File number	Purpose	Result	Filed from
Feb 17, 2026	0011908708	New license	Granted	Palm Bay, FL

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