N9TPB FCC License Search

🕒 FCC license data updated yesterday 6:02 am CDT (FCC files through Oct 9, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

KA3DCO HAM

Amateur Extra class licensed since 1984 (42 yrs) Cambridge, MD Grid FM18xn eQSL AG 97 repeaters within 50 mi

🔒 Not available — currently licensed, through Jul 15, 2034. If it isn't renewed, it opens for vanity requests Jul 16, 2036.

📬 QSL: no LoTW uploads on record · eQSL AG member · QRZ · HamQTH

Currently held by KENNETH R THOMAS JR · 1 holder on record

Current holder: KENNETH R THOMAS JR

Held KA3DCO Sep 25, 1984 → present · first licensed Sep 25, 1984 as KA3DCO · 1 license · FRN 0009505611
📖 In the printed callbooks since 1981 as KA3DCO, before the FCC's online records

KA3DCO Active Amateur Extra Sep 25, 1984 → expires Jul 15, 2034

Licensee
KENNETH R THOMAS JR

Address
304 ACADEMY ST #201
CAMBRIDGE, MD 21613
38.5712, -76.0753 (street) · Grid FM18xn · CQ 5 · ITU 8 · map ↗

FRN
0009505611

Last granted
May 22, 2024

Effective
May 22, 2024

Last action
May 22, 2024
FCC actions (4)
- May 22, 2024 — License renewed LIREN
- May 12, 2014 — License renewed LIREN
- Jan 23, 2012 — License modified LIMOD
- Jun 10, 2004 — FCC action LITIN

Callbook Records, 1993–2003

From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.

Seen Oct 27, 1996 → Apr 7, 1999 · 5 discs
KA3DCO · General · issued Apr 24, 1996, expires Jul 15, 2004
KENNETH R THOMAS JR
304 ACADEMY ST 201, CAMBRIDGE, MD 21613
Seen Oct 31, 1994 → Apr 21, 1996 · 4 discs
KA3DCO · General · issued Jul 15, 1994, expires Jul 15, 2004
KENNETH R THOMAS JR
2 A SHADY DR, CAMBRIDGE, MD 21613
Seen Sep 9, 1993 → May 3, 1994 · 2 discs
KA3DCO · General · issued Sep 25, 1984, expires Sep 25, 1994
KENNETH R THOMAS JR
2A SHADY DR, CAMBRIDGE, MD 21613

Address history

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

Seen Jul 1, 2024 → Oct 4, 2026 · 11 snapshots · as KA3DCO
KENNETH R THOMAS JR
304 ACADEMY ST #201, CAMBRIDGE, MD 21613
38.5712, -76.0753 (street) · Grid FM18xn · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Apr 27, 2024 · 37 snapshots · as KA3DCO
KENNETH R THOMAS JR
304 ACADEMY ST 201, CAMBRIDGE, MD 21613
38.5028, -76.0789 (ZIP center) · Grid FM18xm · CQ 5 · ITU 8 · map ↗

KA3DCO in the Printed Callbooks, 1909–1997

From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.

1994 → 1997 · 2 editions
KA3DCO · class G
Kenneth R Thomas Jr
2-A Shady Dr, Cambridge, MD 21613
1994 p.410, 1997 p.463
1992 · 1 edition
KA3DCO · class G
Kenneth R Thomas Jr
2-A Shadr Dr, Cambridge Md 1jb!j W3den, PA 19128
1992 p.365
1988 · 1 edition
KA3DCO · class N
Leo F Petrokonis
153 Gorllam Ave, Mayfield, PA 18433
Winter 1988 p.330
1982 → 1983 · 2 editions
KA3DCO · class G
Kenneth Rthomas Jr
2a Shady Dr, Cambridge, MD 21613
Winter 1982 p.311, Winter 1983 p.319
1981 · 1 edition
KA3DCO · class G
Kenneth R Thomas Dr
2a Shady Dr, Cambridge - Md
Winter 1981 p.303
1980 → 1981 · 2 editions
KA3DCO · class G
Kenneth Rthomas Jr
2·a Shady Dr, Cambridge, MD 21613
Winter 1980 p.300, 1981 p.236
None · 1 edition
KA3DCO · class G
Kenneth R Thomas Dr
2a Shady Dr, Cambridge
None p.245

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KA3DCO in the last 24 hours. They show up here within seconds of KA3DCO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

97 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
4.2	K3EMD	Easton K3EMD WIRES-X	147.0450	+0.6	TSQL 156.7	FM (analog)	WIRES-X 43142	—	Easton, MD
6.5	N3YMS	Trappe N3YMS Interstate	442.5375	+5	CC1	DMR	Interstate	—	Trappe, MD
13.7	K3EMD	Easton URM Ctr K3EMD WIRES-X	442.2000	+5	TSQL 156.7	FM (analog) (FM,C4FM)	WIRES-X 33142	—	Easton, MD
18.4	N3KNT	Federalsburg N3KNT Interstate	442.0500	+5	CC1	DMR	Interstate-2-Network	—	Federalsburg, MD
19.0	K3DRC	Salisbury WMDT K3DRC	146.8200	-0.6	TSQL 156.7	FM (analog)		—	Salisbury, MD
22.2	KB2SKP	Lexington Park KB2SKP BM	446.0125	in 433.0125	CC1	DMR	BrandMeister 314491901	—	Lexington Park, MD
23.5	N3MRG	Tyaskin Muddy N3MRG	146.8650	-0.6	CC1	DMR		—	Tyaskin, MD
23.8	K3CAL	Lusby Appeal K3CAL EchoLink	444.9500	+5	TSQL 156.7	FM (analog) (FM,C4FM)	EchoLink 389207 🗓 1 net	1 net	Lusby, MD
24.3	WG3K	Chesapeake Beach WG3K BM	444.3500	+5	none	D-STAR (DMR,DV)	BrandMeister 312393	—	Chesapeake Beach, MD
25.5	N3KNT	Seaford N3KNT EchoLink	146.7150	-0.6	TONE 156.7	FM (analog)	EchoLink 959058	—	Seaford, DE
25.5	W3TBG	Seaford W3TBG	444.9000	+5	TONE 156.7	FM (analog)		—	Seaford, DE
25.5	N3YMS	Seaford N3YMS Interstate	442.8125	+5	CC1	DMR	Interstate	—	Seaford, DE
26.5	W3TBG	Seaford WSUX W3TBG WIRES-X	145.2100	-0.6	TONE 156.7	FM (analog) (FM,C4FM)	WIRES-X 46540	—	Seaford, DE
26.9	W1JD	Mechanicsville W1JD BM	439.8750	-5	CC8	DMR	BrandMeister 3124132	—	Mechanicsville, MD
27.8	N3PPH	Prince Frederick N3PPH Interstate	441.3875	+5	CC1	DMR	Interstate-3	—	Prince Frederick, MD
28.2	W3PQS	Prince Frederick W3PQS	53.1700	-1	TSQL 100.0	FM (analog)		—	Prince Frederick, MD
28.8	K3GGM	Hollywood K3GGM BM	446.5000	-5	CC1	DMR	BrandMeister 3211901	—	Hollywood, MD
28.9	N3PPH	Sunderland Mt N3PPH Interstate	441.6375	+5	CC1	DMR	Interstate-2	—	Sunderland, MD
28.9	K3CAL	Sunderland K3CAL EchoLink	146.9850	-0.6	TONE 156.7	FM (analog) (FM,C4FM)	EchoLink 389207 🗓 1 net	1 net	Sunderland, MD
29.3	N3FI	Barstow N3FI	443.7000	+5	TSQL 179.9	FM (analog) (FM,C4FM)		—	Barstow, MD
29.4	W3SMD	Barstow W3SMD AllStar	223.9000	-1.6	TONE 186.2	FM (analog)	AllStar 513100	—	Barstow, MD
29.6	W3PRO	Salisbury W3PRO	145.2800	-0.6	none	D-STAR		—	Salisbury, MD
29.6	W3PRO	Salisbury W3PRO	146.9250	-0.6	TSQL 156.7	FM (analog)		—	Salisbury, MD
29.6	N3MRG	Salisbury N3MRG Interstate	442.6500	+5	CC6	DMR	Interstate	—	Salisbury, MD
29.6	K3RIC	Salisbury K3RIC	444.0500	+5	none	FM (analog) (FM,C4FM)		—	Salisbury, MD
29.6	W3PRO	Salisbury W3PRO	444.2000	+5	none	D-STAR		—	Salisbury, MD
29.7	K3OCM	Salisbury K3OCM K4USD	442.6500	+5	CC6	DMR	K4USD	—	Salisbury, MD
30.2	N3YMS	Eden N3YMS Interstate	441.8875	+5	CC2	DMR	Interstate	—	Eden, MD
30.5	KB2SKP	Lexington Park KB2SKP WIRES-X	445.2500	-5	DG-ID 00-00	Fusion (C4FM)	WIRES-X 74906	—	Lexington Park, MD
30.6	W3BPT	Hollywood W3BPT Interstate	146.8500	-0.6	CC1	DMR	Interstate-3	—	Hollywood, MD
30.7	K3HKI	Lexington Park K3HKI	146.6400	-0.6	TSQL 146.2	FM (analog)	🗓 3 nets	3 nets · 109 check-ins · 44 stations	Lexington Park, MD
30.8	W3WMD	Greenwood W3WMD	224.4400	-1.6	none	FM (analog)		—	Greenwood, DE
31.2	N3PPH	Hollywood Fire N3PPH	145.3500	-0.6	TONE 156.7	FM (analog)		—	Hollywood, MD
32.0	W3GAB	Stevensville W3GAB BM	433.8000	+5	CC1	DMR	BrandMeister 321788101	—	Stevensville, MD
32.3	N3PPH	Mechanicsville N3PPH Interstate	441.7875	+5	CC1	DMR	Interstate-2	—	Mechanicsville, MD
32.5	W3ETC	Centreville W3ETC	927.6500	-25	TSQL 156.7	FM (analog) (FM,P25)		—	Centreville, MD
32.5	KE3AO	Centreville KE3AO	146.9400	-0.6	TONE 107.2	FM (analog)		—	Centreville, MD
32.5	KE3AO	Centreville KE3AO	448.2250	-5	TONE 107.2	FM (analog) (FM,C4FM)		—	Centreville, MD
32.8	KA3MRX	Princess Anne KA3MRX	146.6250	-0.6	TONE 156.7	FM (analog)		—	Princess Anne, MD
35.1	N3LHD	Aquasco N3LHD Interstate	442.4625	+5	CC1	DMR	Interstate-c-Bridge-1	—	Aquasco, MD
35.4	KC3FOQ	Leonardtown Fair KC3FOQ	443.3000	+5	TONE 123.0	FM (analog) (FM,C4FM)	🗓 2 nets	2 nets · 13 check-ins · 10 stations	Leonardtown, MD
35.4	KC3FOQ	Leonardtown Fair KC3FOQ	147.3900	+0.6	TONE 146.2	FM (analog) (FM,C4FM)	🗓 2 nets	2 nets · 13 check-ins · 10 stations	Leonardtown, MD
36.2	KB3IWV	Harrington KB3IWV	442.4500	+5	TONE 127.3	FM (analog)		—	Harrington, DE
36.9	W3OR	Westover W3OR	145.3200	-0.6	none	FM (analog)		—	Westover, MD
37.1	N3HAZ	Annapolis N3HAZ BM	439.5500	in 433.5500	CC1	DMR	BrandMeister 3197367	—	Annapolis, MD
37.2	N3PX	Mechanicsville N3PX	147.1950	+0.6	TSQL 156.7	FM (analog)	🗓 1 net	1 net · 42 check-ins · 13 stations	Mechanicsville, MD
38.7	W3VPR	Davidsonville W3VPR	147.1050	+0.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 679 check-ins · 85 stations	Davidsonville, MD
38.7	W3VPR	Davidsonville W3VPR	223.8800	-1.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 679 check-ins · 85 stations	Davidsonville, MD
38.7	W3VPR	Davidsonville W3VPR	444.4000	+5	TSQL 107.2	FM (analog)	🗓 5 nets	5 nets · 679 check-ins · 85 stations	Davidsonville, MD
38.7	KB3CMA	Annapolis Broad KB3CMA Interstat	441.8375	+5	CC1	DMR	Interstate-3	—	Annapolis, MD
38.7	KB3CMA	Annapolis Broad KB3CMA	442.3000	+5	TSQL 107.2	FM (analog) (C4FM,FM)		—	Annapolis, MD
38.9	K3OCM	Charlotte Hall K3OCM K4USD-Net	443.1875	+5	CC6	DMR	K4USD-Net	—	Charlotte Hall, MD
40.6	KC3FCQ	Arnold KC3FCQ BM	442.8750	+5	CC1	DMR	BrandMeister 312411801	—	Arnold, MD
40.7	N3KUN	Chaptico N3KUN	145.2500	-0.6	TONE 110.9	FM (analog)		—	Chaptico, MD
41.5	W3OR	Crisfield McCrea W3OR	145.1300	-0.6	CC1	DMR		—	Crisfield, MD
41.8	W3VPR	Crownsville W3VPR EchoLink	147.0750	+0.6	TSQL 107.2	FM (analog)	EchoLink 524902 🗓 5 nets	5 nets · 679 check-ins · 85 stations	Crownsville, MD
42.2	N3YMS	Hazlettville N3YMS Interstate	448.0750	-5	CC2	DMR	Interstate-2-Network	—	Hazlettville, DE
42.3	N3RKT	Crisfield N3RKT WIRES-X	145.1100	-0.6	TSQL 156.7	FM (analog) (FM,C4FM)	WIRES-X 30213	—	Crisfield, MD
42.4	WS3EOC	Millsboro WS3EOC	443.2000	+5	TONE 156.7	FM (analog) (FM,C4FM)		—	Millsboro, DE
42.4	WS3ARA	Millsboro WS3ARA EchoLink	147.0900	+0.6	TONE 156.7	FM (analog)	EchoLink 622721	—	Millsboro, DE
42.4	WS3ARA	Millsboro WS3ARA	449.8250	-5	TONE 156.7	FM (analog) (FM,C4FM)		—	Millsboro, DE
42.4	WS3ARA	Millsboro WS3ARA	224.8400	-1.6	TONE 156.7	FM (analog)		—	Millsboro, DE
42.6	WA3YUV	Brandywine WA3YUV	443.6000	+5	TSQL 103.5	FM (analog) (FM,C4FM)		—	Brandywine, MD
42.9	KC3DVC	Crisfield KC3DVC Interstat	145.1300	-0.6	CC1	DMR	Interstate	—	Crisfield, MD
43.2	N3YMS	Frederica N3YMS Interstate	449.7250	-5	CC1	DMR	Interstate	—	Frederica, DE
43.5	W3SMR	Brandywine W3SMR	147.1500	+0.6	TSQL 114.8	FM (analog)		—	Brandywine, MD
44.0	KC3ARC	Woodside KC3ARC	146.9100	-0.6	TONE 77.0	FM (analog) (FM,C4FM)	🗓 7 nets	7 nets · 151 check-ins · 39 stations	Woodside, DE
44.0	KC3ARC	Woodside KC3ARC	444.5500	+5	TSQL 77.0	FM (analog)	🗓 7 nets	7 nets · 151 check-ins · 39 stations	Woodside, DE
44.3	N3YMS	Hazlettville N3YMS	147.3000	+0.6	TSQL 77.0	FM (analog)		—	Hazlettville, DE
44.6	K3ARS	Chestertown Shor K3ARS	449.1750	-5	TONE 156.7	FM (analog)		—	Chestertown, MD
44.8	N3YMS	Chestertown N3YMS Interstate	441.6625	+5	CC1	DMR	Interstate	—	Chestertown, MD
44.8	N3LHD	Upper Marlboro N3LHD Interstate	444.6500	+5	CC6	DMR	Interstate-c-Bridge-1	—	Upper Marlboro, MD
44.8	N3YMS	Dagsboro N3YMS Interstate	443.1000	+5	CC1	DMR	Interstate	—	Dagsboro, DE
45.5	N3SCP	Gambrills N3SCP WIRES-X	447.5500	-5	DG-ID 00-00	Fusion (C4FM)	WIRES-X 18557	—	Gambrills, MD
45.5	N3SCP	Gambrills N3SCP WIRES-X	442.5500	+5	TONE 107.2	FM (analog) (FM,C4FM)	WIRES-X 18557	—	Gambrills, MD
45.7	KA2JAI	Millersville KA2JAI EchoLink	146.8050	-0.6	TSQL 107.2	FM (analog)	EchoLink 🗓 1 net	1 net	Millersville, MD
45.9	N3DN	Camden N3DN BM	447.8750	-5	CC1	DMR	BrandMeister 314964	—	Camden, DE
46.0	W4ATN	Largo W4ATN MARC	443.7875	+5	CC3	DMR	DMR-MARC	—	Largo, MD
46.2	KR3LC	Pasadena KR3LC BM	433.4500	in 446.4500	CC1	DMR	BrandMeister 312414103	—	Pasadena, MD
46.6	KB3IAI	Gambrills KB3IAI BM	439.9000	in 438.2000	CC1	DMR	BrandMeister 3172111	—	Gambrills, MD
46.8	WS3ARA	Selbyville WS3ARA WIRES-X	147.0150	+0.6	TONE 156.7	FM (analog) (C4FM,FM)	WIRES-X 30017	—	Selbyville, DE
46.9	W3CU	Millersville W3CU EchoLink	146.8050	-0.6	TONE 107.2	FM (analog)	EchoLink 90911	—	Millersville, MD
46.9	W3VPR	Millersville W3VPR	224.5600	-1.6	TONE 107.2	FM (analog)	🗓 5 nets	5 nets · 679 check-ins · 85 stations	Millersville, MD
46.9	W3CU	Millersville W3CU	449.1250	-5	TONE 107.2	FM (analog) (FM,C4FM)		—	Millersville, MD
46.9	N3IOC	Wyoming N3IOC	449.7750	-5	TONE 114.8	FM (analog)		—	Wyoming, DE
47.3	K6XH	Callao K6XH BM	443.0875	+5	CC1	DMR	BrandMeister 314364	—	Callao, VA
48.1	W3GMD	Lewes WGMD W3GMD	443.5500	+5	TONE 156.7	FM (analog) (FM,C4FM)		—	Lewes, DE
48.5	K3ERA	District Heights K3ERA EchoLink	145.2300	-0.6	TSQL 110.9	FM (analog) (FM,C4FM)	EchoLink 294165 🗓 2 nets	2 nets · 52 check-ins · 19 stations	District Heights, MD
49.1	K3ARS	Worton K3ARS AllStar	147.3750	+0.6	TSQL 156.7	FM (analog)	AllStar 497350	—	Worton, MD
49.1	K3ARS	Worton K3ARS BM	447.7375	-5	CC1	DMR	BrandMeister 312414	—	Worton, MD
49.1	K3ARS	Worton K3ARS BM	442.7375	+5	CC1	DMR	BrandMeister 312414	—	Worton, MD
49.2	W3BXW	Roxana W3BXW NJ-TRBO	448.7250	-5	CC1	DMR	NJ-TRBO	—	Roxana, DE
49.7	W3CPO	Glen Burnie W3CPO BM	448.5000	-5	CC1	DMR	BrandMeister 312442201	—	Glen Burnie, MD
31.3	KB3FWW Offline	Hollywood KB3FWW IRLP	449.4900	simplex	TSQL 146.2	FM (analog)	IRLP 8856	—	Hollywood, MD
45.6	KP4IP Offline	Millersville KP4IP BM	442.4000	+5	CC1	DMR	BrandMeister 310148	—	Millersville, MD
46.3	K3BAY Offline	Pasadena K3BAY IRLP	145.5400	simplex	TSQL 107.2	FM (analog)	IRLP 4717	—	Pasadena, MD
48.4	W3XJ Offline	Bowie W3XJ	442.1500	+5	none	FM (analog)		—	Bowie, MD