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

WSKU730 GMRS 📡 HAM

📡

Also a licensed HAM

K6DYC

General class · same FCC Registration Number (FRN)

Current holder: Derek Chang

General Mobile Radio Service license · held by Derek Chang · San Jose, CA · FRN 0037745593

Status	Active
Granted	Dec 16, 2025
Expires	Dec 16, 2035
Mailing address	1065 Kelly Dr., San Jose, CA 95129

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
5	RP20	462.675	D311	WRKH273	San Jose, CA	Open	On the air
5	RP18	462.625	141.3	WQBW533	Los Gatos, CA · Hwy 17 Summit	Open	On the air
8	RP22	462.725	—	WRQD317	Los Altos, CA	Closed	Unknown
8	RP19	462.650	77.0	WQLS681	San Jose, CA · Almaden Valley	Open	On the air
8	RP19	462.650	77.0	WQLS681	San Jose, CA · Almaden Valley	Open	On the air
16	RP19	462.650	94.8	WRMZ431	Woodside, CA	Open	On the air
20	RP22	462.725	250.3	WSJK648	Corralitos, CA · Velencia Creek Headwaters	Open	On the air
22	RP17	462.600	—	KAF1291	Sunol, CA · Sunol Peak	Closed	On the air
23	RP20	462.675	94.8	WSJM872	Santa Cruz, CA · Santa Cruz Mtns	Open	On the air
36	RP20	462.675	192.8	WRAV865	San Francisco, CA · Portola	Open	On the air
39	RP17	462.600	—	KAF1291	Oakland, CA	Closed	On the air
41	RP18	462.625	103.5	WRJI287	San Francisco, CA	Open	On the air
46	RP19	462.650	91.5	WRAM471	Pleasant Hill, CA	Open	On the air
47	RP22	462.725	110.9	WSHA681	San Juan Bautista, CA · Fremont Pk	Open	On the air

📡 Amateur radio licenses on the same FRN

Call	Status	Class	Name	Location	Granted	Expires
K6DYC	Active	General	Derek Chang	San Jose, CA	Jan 27, 2026	Jan 27, 2036
KO6LVQ	Canceled	General	Derek Chang	San Jose, CA	Jan 3, 2026	Jan 3, 2036

📜 License history

Date	FCC action
Dec 16, 2025	License issued

🏠 Address history

Every address Derek Chang gave the FCC on a GMRS filing, newest first.

Filed from	Address	On a
Dec 15, 2025	1065 Kelly Dr., San Jose, CA 95129	New license

📝 GMRS applications filed

Received	File number	Purpose	Result	Filed from
Dec 15, 2025	0011830162	New license	Granted	San Jose, CA

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