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

WRYK571 GMRS 📡 HAM

📡

Also a licensed HAM

N9DK

Amateur Extra class · same FCC Registration Number (FRN) · active on 2 nets · LoTW user

Current holder: David R Koberstein

General Mobile Radio Service license · held by David R Koberstein · Mountain View, CA · FRN 0006828503

Status	Active
Granted	Aug 22, 2023
Expires	Aug 22, 2033
Mailing address	1300 Ernestine Lane, Mountain View, CA 94040

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
1	RP22	462.725	—	WRQD317	Los Altos, CA	Closed	Unknown
9	RP19	462.650	94.8	WRMZ431	Woodside, CA	Open	On the air
11	RP20	462.675	D311	WRKH273	San Jose, CA	Open	On the air
12	RP18	462.625	141.3	WQBW533	Los Gatos, CA · Hwy 17 Summit	Open	On the air
15	RP19	462.650	77.0	WQLS681	San Jose, CA · Almaden Valley	Open	On the air
16	RP19	462.650	77.0	WQLS681	San Jose, CA · Almaden Valley	Open	On the air
19	RP17	462.600	—	KAF1291	Sunol, CA · Sunol Peak	Closed	On the air
28	RP22	462.725	250.3	WSJK648	Corralitos, CA · Velencia Creek Headwaters	Open	On the air
29	RP20	462.675	192.8	WRAV865	San Francisco, CA · Portola	Open	On the air
29	RP20	462.675	94.8	WSJM872	Santa Cruz, CA · Santa Cruz Mtns	Open	On the air
32	RP17	462.600	—	KAF1291	Oakland, CA	Closed	On the air
34	RP18	462.625	103.5	WRJI287	San Francisco, CA	Open	On the air
40	RP19	462.650	91.5	WRAM471	Pleasant Hill, CA	Open	On the air
46	RP16	462.575	—	WRPA270	Pittsburg, CA	Closed	On the air

📡 Amateur radio licenses on the same FRN

Call	Status	Class	Name	Location	Granted	Expires
N9DK	Active	Extra	DAVID R KOBERSTEIN	Mountain View, CA	Aug 16, 2022	Nov 10, 2032

📜 License history

Date	FCC action
Aug 22, 2023	License issued

🏠 Address history

Every address David R Koberstein gave the FCC on a GMRS filing, newest first.

Filed from	Address	On a
Aug 21, 2023	1300 Ernestine Lane, Mountain View, CA 94040	New license

📝 GMRS applications filed

Received	File number	Purpose	Result	Filed from
Aug 21, 2023	0010663101	New license	Granted	Mountain View, CA

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