N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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

WRKV727 GMRS 📡 HAM

📡

Also a licensed HAM

AC3LU

Amateur Extra class · same FCC Registration Number (FRN)

Current holder: John H Mountcastle

General Mobile Radio Service license · held by John H Mountcastle · Mount Airy, MD · FRN 0009552993

Status	Active
Granted	Feb 19, 2021
Expires	Feb 19, 2031
Mailing address	1420 Florence Road, Mount Airy, MD 21771

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

📻 GMRS repeaters within 50 miles

33 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
16	RP15	462.550	D261	WRTH256	Frederick, MD · Butterfly Ridge Elementary	Open	On the air
19	RP20	462.675	100.0	WRJY601	Frederick, MD	Open	On the air
21	RP19	462.650	192.8	WRJY601	Ellicott City, MD	Open	On the air
22	RP21	462.700	107.2	WRJY601	Thurmont, MD	Open	On the air
24	RP18	462.625	156.7	WPON592	Wheaton, MD	Open	On the air
26	RP22	462.725	88.5	WQMM856	Laurel, MD	Open	On the air
29	RP15	462.550	141.3	WRZV755	Baltimore, MD · Pigtown	Open	On the air
30	RP17	462.600	192.8	WRJY601	Towson, MD	Open	On the air
30	RP20	462.675	192.8	WRJY601	Baltimore, MD	Open	On the air
32	RP18	462.625	67.0	WRMP641	White Hall, MD	Open	On the air
35	RP16	462.575	141.3	KAD6329	Arlington, VA · Clarendon	Open	On the air
36	RP20	462.675	141.3	KAD6329	Falls Church, VA · Seven Corners	Open	On the air
36	RP15	462.550	141.3	WPON592	Falls Church, VA · Seven Corners	Open	On the air
37	RP21	462.700	203.5	WSEI555	Spring Grove, PA	Open	On the air
37	RP15	462.550	141.3	WQMM856	Lanham, MD · Doctor's Hospital	Open	On the air
37	RP15	462.550	136.5	WRXD980	Burtonsville, MD	Open	On the air
37	RP15	462.550	—	WRYB934	Chestertown, MD	Open	On the air
37	RP20	462.675	103.5	WSAD893	Baltimore, MD · Pasadena	Open	On the air
37	RP19	462.650	127.3	WRWQ569	Waynesboro, PA	Open	On the air
38	RP20	462.675	141.3	WRPC304	Port Deposit, MD · I-95 At The Susquehanna River	Open	On the air
39	RP21	462.700	141.3	KAB7046	Washington, DC · Anacostia	Open	On the air
39	RP16	462.575	241.8	WREZ274	Capitol Heights, MD	Open	On the air
39	RP18	462.625	123.0	WPON592	Alexandria, VA · Fort Ward Park	Open	On the air
40	RP18	462.625	88.5	WQMM856	Largo, MD	Open	On the air
40	RP17	462.600	141.3	KAB7046	Alexandria, VA · West End	Open	On the air

Showing the closest 25.

📡 Amateur radio licenses on the same FRN

Call	Status	Class	Name	Location	Granted	Expires
AC3LU	Active	Extra	John H Mountcastle	Mount Airy, MD	Jul 4, 2023	Sep 8, 2033
KB3KEY	Canceled	Extra	John H Mountcastle	Mount Airy, MD	Jul 4, 2023	Sep 8, 2033

📜 License history

Date	FCC action
Feb 19, 2021	License issued

🏠 Address history

Every address John H Mountcastle gave the FCC on a GMRS filing, newest first.

Filed from	Address	On a
Feb 18, 2021	1420 Florence Road, Mount Airy, MD 21771	New license

📝 GMRS applications filed

Received	File number	Purpose	Result	Filed from
Feb 18, 2021	0009421021	New license	Granted	Mount Airy, MD

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