N9TPB FCC License Search

🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 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

KB3OPC HAM

🔒 Not available — currently licensed, through Feb 20, 2027. If it isn't renewed, it opens for vanity requests Feb 21, 2029.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Currently held by William D Gregory · 1 holder on record

Current holder: William D Gregory

Held KB3OPC Feb 20, 2007 → present · first licensed Feb 20, 2007 as KB3OPC · 1 license · FRN 0016125023

KB3OPC Active General Feb 20, 2007 → expires Feb 20, 2027

Licensee
William D Gregory

Address
2700 Willow Oak Drive #208
Cambridge, MD 21613
38.5625, -76.0500 (street) · Grid FM18xn · CQ 5 · ITU 8 · map ↗

FRN
0016125023

Last granted
Dec 6, 2016

Effective
Oct 4, 2023

Last action
Oct 4, 2023
FCC actions (6)
- Oct 4, 2023 — Administrative update LIAUA
- Aug 18, 2017 — Administrative update LIAUA
- Dec 6, 2016 — License renewed LIREN
- Mar 19, 2007 — License modified LIMOD
- Feb 20, 2007 — License issued LIISS
- Feb 20, 2007 — Systematic call sign granted SYSGRT

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Apr 27, 2024 → Sep 27, 2026 · 11 snapshots · as KB3OPC
William D Gregory
2700 Willow Oak Drive #208, Cambridge, MD 21613
38.5625, -76.0500 (street) · Grid FM18xn · CQ 5 · ITU 8 · map ↗
Seen May 27, 2010 → Apr 16, 2022 · 35 snapshots · as KB3OPC
William D Gregory
3018 Finsel Ct, Olney, MD 20832
39.1503, -77.0783 (ZIP center) · Grid FM19ld · CQ 5 · ITU 8 · map ↗

Others requesting KB3OPC

1 application listed KB3OPC as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Sep 6, 2016	Sep 24, 2016	KB3CUM · TIMOTHY H BUTLER · Annandale, VA	21	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KB3OPC in the last 24 hours. They show up here within seconds of KB3OPC beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

101 repeaters within 50 miles of this address, closest first · sort: closest · most active · map these & export for a radio →

● confirmed on the air · ● probably · ● reported off the air · ● unknown · ◉ this license · ring = 50 miles · click a dot for the repeater's page

● confirmed on the air · ● probably · ● reported off the air · no dot = unknown (hover a dot for the evidence)

Miles	Call	Name	Output	Offset	Tone	Mode	Networks	Activity	Location
4.7	K3EMD	Easton K3EMD WIRES-X	147.0450	+0.6	TSQL 156.7	FM (analog)	WIRES-X 43142	—	Easton, MD
7.0	N3YMS	Trappe N3YMS Interstate	442.5375	+5	CC1	DMR	Interstate	—	Trappe, MD
14.4	K3EMD	Easton URM Ctr K3EMD WIRES-X	442.2000	+5	TSQL 156.7	FM (analog) (FM,C4FM)	WIRES-X 33142	—	Easton, MD
17.5	K3DRC	Salisbury WMDT K3DRC	146.8200	-0.6	TSQL 156.7	FM (analog)	🗓 1 net	1 net	Salisbury, MD
17.5	N3KNT	Federalsburg N3KNT Interstate	442.0500	+5	CC1	DMR	Interstate-2-Network	—	Federalsburg, MD
22.3	N3MRG	Tyaskin Muddy N3MRG	146.8650	-0.6	CC1	DMR		—	Tyaskin, MD
23.2	KB2SKP	Lexington Park KB2SKP BM	446.0125	in 433.0125	CC1	DMR	BrandMeister 314491901	—	Lexington Park, MD
24.3	W3TBG	Seaford W3TBG	444.9000	+5	TONE 156.7	FM (analog)		—	Seaford, DE
24.3	N3YMS	Seaford N3YMS Interstate	442.8125	+5	CC1	DMR	Interstate	—	Seaford, DE
24.3	N3KNT	Seaford N3KNT EchoLink	146.7150	-0.6	TONE 156.7	FM (analog)	EchoLink 959058	—	Seaford, DE
24.7	K3CAL	Lusby Appeal K3CAL EchoLink	444.9500	+5	TSQL 156.7	FM (analog) (FM,C4FM)	EchoLink 389207 🗓 1 net	1 net	Lusby, MD
25.3	W3TBG	Seaford WSUX W3TBG WIRES-X	145.2100	-0.6	TONE 156.7	FM (analog) (C4FM,FM)	WIRES-X 46540 WIRES-X 36540	—	Seaford, DE
25.7	WG3K	Chesapeake Beach WG3K BM	444.3500	+5	none	D-STAR (DMR,DV)	BrandMeister 312393	—	Chesapeake Beach, MD
27.5	W1JD	Mechanicsville W1JD BM	439.8750	-5	CC8	DMR	BrandMeister 3124132	—	Mechanicsville, MD
28.1	W3PRO	Salisbury W3PRO	145.2800	-0.6	none	D-STAR		—	Salisbury, MD
28.1	W3PRO	Salisbury W3PRO	146.9250	-0.6	TSQL 156.7	FM (analog)		—	Salisbury, MD
28.1	N3MRG	Salisbury N3MRG Interstate	442.6500	+5	CC6	DMR	Interstate	—	Salisbury, MD
28.1	K3RIC	Salisbury K3RIC	444.0500	+5	none	FM (analog) (FM,C4FM)		—	Salisbury, MD
28.1	W3PRO	Salisbury W3PRO	444.2000	+5	none	D-STAR		—	Salisbury, MD
28.2	K3OCM	Salisbury K3OCM K4USD	442.6500	+5	CC6	DMR	K4USD	—	Salisbury, MD
28.7	N3YMS	Eden N3YMS Interstate	441.8875	+5	CC2	DMR	Interstate	—	Eden, MD
29.2	N3PPH	Prince Frederick N3PPH Interstate	441.3875	+5	CC1	DMR	Interstate-3	—	Prince Frederick, MD
29.5	W3PQS	Prince Frederick W3PQS	53.1700	-1	TSQL 100.0	FM (analog)		—	Prince Frederick, MD
29.6	K3GGM	Hollywood K3GGM BM	446.5000	-5	CC1	DMR	BrandMeister 3211901	—	Hollywood, MD
30.0	W3WMD	Greenwood W3WMD	224.4400	-1.6	none	FM (analog)		—	Greenwood, DE
30.4	N3PPH	Sunderland Mt N3PPH Interstate	441.6375	+5	CC1	DMR	Interstate-2	—	Sunderland, MD
30.4	K3CAL	Sunderland K3CAL EchoLink	146.9850	-0.6	TONE 156.7	FM (analog) (FM,C4FM)	EchoLink 389207 🗓 1 net	1 net	Sunderland, MD
30.6	N3FI	Barstow N3FI	443.7000	+5	TSQL 179.9	FM (analog) (FM,C4FM)		—	Barstow, MD
30.7	W3SMD	Barstow W3SMD AllStar	223.9000	-1.6	TONE 186.2	FM (analog)	AllStar 513100	—	Barstow, MD
31.1	K3HKI	Lexington Park K3HKI	146.6400	-0.6	TSQL 146.2	FM (analog)	🗓 3 nets	3 nets · 99 check-ins · 44 stations	Lexington Park, MD
31.2	KB2SKP	Lexington Park KB2SKP WIRES-X	445.2500	-5	DG-ID 00-00	Fusion (C4FM)	WIRES-X 74906	—	Lexington Park, MD
31.5	KA3MRX	Princess Anne KA3MRX	146.6250	-0.6	TONE 156.7	FM (analog)		—	Princess Anne, MD
31.6	W3BPT	Hollywood W3BPT Interstate	146.8500	-0.6	CC1	DMR	Interstate-3	—	Hollywood, MD
32.1	N3PPH	Hollywood Fire N3PPH	145.3500	-0.6	TONE 156.7	FM (analog)		—	Hollywood, MD
33.1	W3GAB	Stevensville W3GAB BM	433.8000	+5	CC1	DMR	BrandMeister 321788101	—	Stevensville, MD
33.1	W3ETC	Centreville W3ETC	927.6500	-25	TSQL 156.7	FM (analog) (FM,P25)		—	Centreville, MD
33.1	KE3AO	Centreville KE3AO	146.9400	-0.6	TONE 107.2	FM (analog)		—	Centreville, MD
33.1	KE3AO	Centreville KE3AO	448.2250	-5	TONE 107.2	FM (analog) (FM,C4FM)		—	Centreville, MD
33.4	N3PPH	Mechanicsville N3PPH Interstate	441.7875	+5	CC1	DMR	Interstate-2	—	Mechanicsville, MD
35.6	KB3IWV	Harrington KB3IWV	442.4500	+5	TONE 127.3	FM (analog)		—	Harrington, DE
35.7	W3OR	Westover W3OR	145.3200	-0.6	none	FM (analog)		—	Westover, MD
36.2	KC3FOQ	Leonardtown Fair KC3FOQ	443.3000	+5	TONE 123.0	FM (analog) (FM,C4FM)		—	Leonardtown, MD
36.2	KC3FOQ	Leonardtown Fair KC3FOQ	147.3900	+0.6	TONE 146.2	FM (analog) (FM,C4FM)		—	Leonardtown, MD
36.5	N3LHD	Aquasco N3LHD Interstate	442.4625	+5	CC1	DMR	Interstate-c-Bridge-1	—	Aquasco, MD
38.4	N3HAZ	Annapolis N3HAZ BM	439.5500	in 433.5500	CC1	DMR	BrandMeister 3197367	—	Annapolis, MD
38.4	N3PX	Mechanicsville N3PX	147.1950	+0.6	TSQL 156.7	FM (analog)	🗓 1 net	1 net · 34 check-ins · 12 stations	Mechanicsville, MD
40.1	KB3CMA	Annapolis Broad KB3CMA Interstat	441.8375	+5	CC1	DMR	Interstate-3	—	Annapolis, MD
40.1	KB3CMA	Annapolis Broad KB3CMA	442.3000	+5	TSQL 107.2	FM (analog) (C4FM,FM)		—	Annapolis, MD
40.1	W3VPR	Davidsonville W3VPR	147.1050	+0.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 528 check-ins · 75 stations	Davidsonville, MD
40.1	W3VPR	Davidsonville W3VPR	223.8800	-1.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 528 check-ins · 75 stations	Davidsonville, MD
40.1	W3VPR	Davidsonville W3VPR	444.4000	+5	TSQL 107.2	FM (analog)	🗓 5 nets	5 nets · 528 check-ins · 75 stations	Davidsonville, MD
40.1	K3OCM	Charlotte Hall K3OCM K4USD-Net	443.1875	+5	CC6	DMR	K4USD-Net	—	Charlotte Hall, MD
40.6	W3OR	Crisfield McCrea W3OR	145.1300	-0.6	CC1	DMR		—	Crisfield, MD
41.0	WS3EOC	Millsboro WS3EOC	443.2000	+5	TONE 156.7	FM (analog) (FM,C4FM)		—	Millsboro, DE
41.0	WS3ARA	Millsboro WS3ARA EchoLink	147.0900	+0.6	TONE 156.7	FM (analog)	EchoLink 622721	—	Millsboro, DE
41.0	WS3ARA	Millsboro WS3ARA	449.8250	-5	TONE 156.7	FM (analog) (FM,C4FM)		—	Millsboro, DE
41.0	WS3ARA	Millsboro WS3ARA	224.8400	-1.6	TONE 156.7	FM (analog)		—	Millsboro, DE
41.4	N3RKT	Crisfield N3RKT WIRES-X	145.1100	-0.6	TSQL 156.7	FM (analog) (FM,C4FM)	WIRES-X 30213	—	Crisfield, MD
41.8	N3KUN	Chaptico N3KUN	145.2500	-0.6	TONE 110.9	FM (analog)		—	Chaptico, MD
41.9	KC3FCQ	Arnold KC3FCQ BM	442.8750	+5	CC1	DMR	BrandMeister 312411801	—	Arnold, MD
41.9	KC3DVC	Crisfield KC3DVC Interstat	145.1300	-0.6	CC1	DMR	Interstate	—	Crisfield, MD
42.1	N3YMS	Hazlettville N3YMS Interstate	448.0750	-5	CC2	DMR	Interstate-2-Network	—	Hazlettville, DE
42.7	N3YMS	Frederica N3YMS Interstate	449.7250	-5	CC1	DMR	Interstate	—	Frederica, DE
43.2	W3VPR	Crownsville W3VPR EchoLink	147.0750	+0.6	TSQL 107.2	FM (analog)	EchoLink 524902 🗓 5 nets	5 nets · 528 check-ins · 75 stations	Crownsville, MD
43.5	N3YMS	Dagsboro N3YMS Interstate	443.1000	+5	CC1	DMR	Interstate	—	Dagsboro, DE
43.7	KC3ARC	Woodside KC3ARC	146.9100	-0.6	TONE 77.0	FM (analog) (FM,C4FM)	🗓 5 nets	5 nets · 123 check-ins · 25 stations	Woodside, DE
43.7	KC3ARC	Woodside KC3ARC	444.5500	+5	TSQL 77.0	FM (analog)	🗓 5 nets	5 nets · 123 check-ins · 25 stations	Woodside, DE
44.0	WA3YUV	Brandywine WA3YUV	443.6000	+5	TSQL 103.5	FM (analog) (FM,C4FM)		—	Brandywine, MD
44.1	N3YMS	Hazlettville N3YMS	147.3000	+0.6	TSQL 77.0	FM (analog)		—	Hazlettville, DE
45.0	W3SMR	Brandywine W3SMR	147.1500	+0.6	TSQL 114.8	FM (analog)		—	Brandywine, MD
45.2	K3ARS	Chestertown Shor K3ARS	449.1750	-5	TONE 156.7	FM (analog)		—	Chestertown, MD
45.4	N3YMS	Chestertown N3YMS Interstate	441.6625	+5	CC1	DMR	Interstate	—	Chestertown, MD
45.4	WS3ARA	Selbyville WS3ARA WIRES-X	147.0150	+0.6	TONE 156.7	FM (analog) (C4FM,FM)	WIRES-X 30017	—	Selbyville, DE
45.6	N3DN	Camden N3DN BM	447.8750	-5	CC1	DMR	BrandMeister 314964	—	Camden, DE
46.2	N3LHD	Upper Marlboro N3LHD Interstate	444.6500	+5	CC6	DMR	Interstate-c-Bridge-1	—	Upper Marlboro, MD
46.6	N3IOC	Wyoming N3IOC	449.7750	-5	TONE 114.8	FM (analog)		—	Wyoming, DE
46.9	N3SCP	Gambrills N3SCP WIRES-X	447.5500	-5	DG-ID 00-00	Fusion (C4FM)	WIRES-X 18557	—	Gambrills, MD
46.9	N3SCP	Gambrills N3SCP WIRES-X	442.5500	+5	TONE 107.2	FM (analog) (FM,C4FM)	WIRES-X 18557	—	Gambrills, MD
46.9	W3GMD	Lewes WGMD W3GMD	443.5500	+5	TONE 156.7	FM (analog) (FM,C4FM)		—	Lewes, DE
47.1	KA2JAI	Millersville KA2JAI EchoLink	146.8050	-0.6	TSQL 107.2	FM (analog)	EchoLink 🗓 1 net	1 net	Millersville, MD
47.4	W4ATN	Largo W4ATN MARC	443.7875	+5	CC3	DMR	DMR-MARC	—	Largo, MD
47.4	KR3LC	Pasadena KR3LC BM	433.4500	in 446.4500	CC1	DMR	BrandMeister 312414103	—	Pasadena, MD
47.6	K6XH	Callao K6XH BM	443.0875	+5	CC1	DMR	BrandMeister 314364	—	Callao, VA
47.8	W3BXW	Roxana W3BXW NJ-TRBO	448.7250	-5	CC1	DMR	NJ-TRBO	—	Roxana, DE
48.0	KB3IAI	Gambrills KB3IAI BM	439.9000	in 438.2000	CC1	DMR	BrandMeister 3172111	—	Gambrills, MD
48.2	W3CU	Millersville W3CU EchoLink	146.8050	-0.6	TONE 107.2	FM (analog)	EchoLink 90911	—	Millersville, MD
48.2	W3VPR	Millersville W3VPR	224.5600	-1.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 528 check-ins · 75 stations	Millersville, MD
48.2	W3CU	Millersville W3CU	449.1250	-5	TONE 107.2	FM (analog) (FM,C4FM)		—	Millersville, MD
49.4	K3ORB	Ocean Pines Wtr K3ORB IRLP	443.4500	+5	TSQL 151.4	FM (analog) (FM,P25)	IRLP 4291 🗓 1 net	1 net · 36 check-ins · 19 stations	Ocean Pines, MD
49.4	N3RCC	Ocean Pines Sand N3RCC	145.1900	-0.6	TSQL 179.9	FM (analog)		—	Ocean Pines, MD
49.8	N3YMS	Dover N3YMS Interstate	449.0750	-5	CC1	DMR	Interstate	—	Dover, DE
49.8	K3ARS	Worton K3ARS AllStar	147.3750	+0.6	TSQL 156.7	FM (analog)	AllStar 497350	—	Worton, MD
49.8	K3ARS	Worton K3ARS BM	447.7375	-5	CC1	DMR	BrandMeister 312414	—	Worton, MD
49.8	K3ARS	Worton K3ARS BM	442.7375	+5	CC1	DMR	BrandMeister 312414	—	Worton, MD
49.8	KC3ARC	Dover DMV KC3ARC	146.9700	-0.6	TSQL 77.0	FM (analog) (FM,C4FM)	🗓 5 nets	5 nets · 123 check-ins · 25 stations	Dover, DE
49.9	N3YMS	Dover Motor N3YMS Interstate	146.7900	-0.6	CC1	DMR	Interstate	—	Dover, DE
49.9	N3IOC	Dover N3IOC	444.5000	-5	TONE 114.8	FM (analog)		—	Dover, DE
32.2	KB3FWW offline	Hollywood KB3FWW IRLP	449.4900	simplex	TSQL 146.2	FM (analog)	IRLP 8856	—	Hollywood, MD
47.0	KP4IP offline	Millersville KP4IP BM	442.4000	+5	CC1	DMR	BrandMeister 310148	—	Millersville, MD
47.5	K3BAY offline	Pasadena K3BAY IRLP	145.5400	simplex	TSQL 107.2	FM (analog)	IRLP 4717	—	Pasadena, MD
49.8	W3XJ offline	Bowie W3XJ	442.1500	+5	none	FM (analog)		—	Bowie, MD