N9TPB FCC License Search

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

KF4MS HAM

Advanced class licensed since 1986 (40 yrs) Tallahassee, FL Grid EM70rk Active on 1 net LoTW user 59 repeaters within 50 mi

🔒 Not available — currently licensed, through Aug 25, 2035. If it isn't renewed, it opens for vanity requests Aug 26, 2037.

📬 QSL: LoTW user · last upload Mar 12, 2025 · not eQSL AG · QRZ · HamQTH

Currently held by DENNIS R AINSWORTH · 1 holder on record

🗓 Active on 1 net · last heard Sep 3, 2026

Current holder: DENNIS R AINSWORTH

Held KF4MS Feb 11, 1986 → present · first licensed Feb 11, 1986 as KF4MS · 1 license · FRN 0010881720
📖 In the printed callbooks since 1980 as WD4HES, before the FCC's online records

KF4MS Active Advanced Feb 11, 1986 → expires Aug 25, 2035

Licensee
DENNIS R AINSWORTH

Address
Attn: Dennis R. Ainsworth
1880 Collins Landing Road
Tallahassee, FL 32310
30.4227, -84.5636 (street) · Grid EM70rk · CQ 5 · ITU 8 · map ↗

FRN
0010881720

Last granted
Aug 14, 2025

Effective
Aug 14, 2025

Last action
Aug 14, 2025
FCC actions (5)
- Aug 14, 2025 — License renewed LIREN
- Aug 25, 2015 — License renewed LIREN
- Apr 5, 2005 — License renewed LIREN
- May 7, 2004 — FCC action ESUFRN
- May 7, 2004 — Administrative update LIAUA

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 26, 1995 → Apr 17, 2003 · 15 discs
KF4MS · Advanced · issued May 10, 1995, expires May 10, 2005
DENNIS R. AINSWORTH .
3717 WICKLOW CIR, TALLAHASSEE, FL 32308
Seen Sep 9, 1993 → May 12, 1995 · 4 discs
KF4MS · Advanced · issued Feb 11, 1986, expires Feb 11, 1996 · previously WD4HES (General)
DENNIS R AINSWORTH
532 38TH AVE NE, SAINT PETERSBURG, FL 33704

Address history

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

Seen Sep 18, 2015 → Oct 4, 2026 · 32 snapshots · as KF4MS
DENNIS R AINSWORTH
Attn: Dennis R. Ainsworth
1880 Collins Landing Road, Tallahassee, FL 32310
30.4227, -84.5636 (street) · Grid EM70rk · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → Aug 2, 2015 · 16 snapshots · as KF4MS
DENNIS R AINSWORTH
202 Woodland Heritage Blvd., Wakulla Springs, FL 32327
30.1815, -84.3027 (ZIP center) · Grid EM70ue · CQ 5 · ITU 8 · map ↗

KF4MS 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.

1996 → 1997 · 2 editions
KF4MS · class A
Dennis Rainsworth
3717 Wicklow Cir, Tallahassee
Winter 1996 p.743, 1997 p.770
1993 → 1995 · 2 editions
KF4MS · class A
Dennis R Ainsworth
Sj1 38th Avenue Ne, Jacksonville Beach, FL 31150
1993 p.641, Winter 1995 p.717
1986 → 1992 · 6 editions
KF4MS · class A
Dennis R Ainsworth
715 39th Ave Ne, Saint Petersburg, FL 33703
Winter 1986 p.520, Winter 1987 p.520, Winter 1988 p.531, Winter 1989 p.538, Winter 1990 p.540, Winter 1992 p.593
1984 → 1985 · 2 editions
KF4MS · class A
Dennis R Ainsworth
715 J9th Ave Ne, Saint Petersburg, FL 33703
Winter 1984 p.521, Winter 1985 p.526

Nets

Net	When	Frequency	Role	Times	Last
NAVY NET - BACK-UP SERVER	Thu 6:45 AM ET	7.245 MHz	Checked in	1	2026-09-03

From nets logged with NetLogger since the start of collection.

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KF4MS in the last 24 hours. They show up here within seconds of KF4MS beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 Miles

59 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
12.9	KJ4PYE	Tallahassee KJ4PYE	444.1500	+5	none	FM (analog)		—	Tallahassee, FL
14.0	K4GFD	Greensboro K4GFD BM	444.9875	+5	CC1	DMR	DMR-MARC BrandMeister	—	Greensboro, FL
14.7	NX4DN	Greensboro NX4DN	147.3900	+0.6	TONE 94.8	FM (analog)		—	Greensboro, FL
14.7	NX4DN	Greensboro NX4DN EchoLink	444.1250	+5	TSQL 94.8	FM (analog)	EchoLink 6433	—	Greensboro, FL
14.7	NX4DN	Greensboro NX4DN NX4DN	444.9875	+5	CC1	DMR	NX4DN	—	Greensboro, FL
15.7	KS4JW	Tallahassee KS4JW	1291.5000	-20	TONE 88.5	FM (analog)		—	Tallahassee, FL
15.7	KS4JW	Tallahassee KS4JW	146.8650	-0.6	TONE 94.8	FM (analog)		—	Tallahassee, FL
16.3	KQ4YKF	Havana KQ4YKF BM	438.9000	-5	CC1	DMR	BrandMeister 3213081	—	Havana, FL
16.4	NX4DN	Tallahassee NX4DN	444.1750	+5	TONE 94.8	FM (analog)		—	Tallahassee, FL
16.5	W4EAF	Gadsden W4EAF	147.1650	+0.6	TONE 94.8	FM (analog)		—	Gadsden, FL
16.5	NX4DN	Chattahoochee NX4DN	443.0250	+5	CC?	DMR		—	Chattahoochee, FL
16.7	K4WAK	Craw Riversink E K4WAK	145.4500	-0.6	TSQL 94.8	FM (analog) (C4FM,FM)		—	Crawfordville, FL
16.7	K4TLH	Tallahassee K4TLH	442.8500	+5	TSQL 94.8	FM (analog) (C4FM,FM)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
16.9	AE4S	Tallahassee AE4S	146.6550	-0.6	TSQL 94.8	FM (analog) (FM,P25)	🗓 1 net	1 net · 30 check-ins · 17 stations	Tallahassee, FL
16.9	N4PG	Tallahassee N4PG	146.6100	-0.6	TONE 203.5	FM (analog)		—	Tallahassee, FL
16.9	K4TLH	Tallahassee K4TLH	146.9100	-0.6	TSQL 94.8	FM (analog) (FM,P25)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
16.9	K4TLH	Tallahassee K4TLH	147.0300	+0.6	TONE 94.8	FM (analog)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
16.9	K4TLH	Tallahassee K4TLH	442.1000	+5	TSQL 94.8	FM (analog)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
16.9	AE4S	Tallahassee AE4S	443.9500	+5	TSQL 94.8	FM (analog) (FM,P25)	🗓 1 net	1 net · 30 check-ins · 17 stations	Tallahassee, FL
16.9	K4TLH	Tallahassee K4TLH	444.8000	+5	TSQL 94.8	FM (analog) (C4FM,FM)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
16.9	NX4DN	Tallahassee NX4DN NX4DN	443.1375	+5	CC1	DMR	NX4DN	—	Tallahassee, FL
16.9	NF4DG	Tallahassee NF4DG	146.8350	-0.6	none	FM (analog) (DV,FM)		—	Tallahassee, FL
16.9	NF4DG	Tallahassee NF4DG	443.4500	+5	none	FM (analog) (DV,FM)		—	Tallahassee, FL
16.9	NF4DG	Tallahassee NF4DG	1293.0000	-20	none	FM (analog) (DV,FM)		—	Tallahassee, FL
17.5	K4TLH	Tallahassee K4TLH	29.6600	-0.1	TSQL 107.2	FM (analog)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
18.2	KD4MOJ	Tallahassee Mem KD4MOJ	444.0000	+5	TONE 94.8	FM (analog)		—	Tallahassee, FL
18.7	W4JMF	Tallahassee W4JMF BM	441.8250	+5	CC1	DMR	BrandMeister 311293	—	Tallahassee, FL
18.7	KD4MOJ	Tallahassee KD4MOJ MARC	444.1500	+5	CC1	DMR	DMR-MARC	—	Tallahassee, FL
19.1	K4WAK	Crawfordvil WCSO K4WAK EchoLink	444.4500	+5	TSQL 94.8	FM (analog)	EchoLink 445259	—	Crawfordville, FL
19.3	AG4UU	Tallahasee AG4UU	443.5000	+5	TONE 94.8	FM (analog)		—	Tallahasee, FL
20.0	K4TLH	Tallahassee Stat K4TLH	443.5000	+5	TONE 94.8	FM (analog)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
20.1	K4TLH	Tallahassee K4TLH	53.0300	-1	TSQL 94.8	FM (analog)	🗓 1 net	1 net · 115 check-ins · 36 stations	Tallahassee, FL
20.1	N4NKV	Tallahassee HCA N4NKV	444.4000	+5	TONE 131.8	FM (analog)		—	Tallahassee, FL
20.1	KN4NN	Crawfordville KN4NN	147.2550	+0.6	TONE 94.8	FM (analog)		—	Crawfordville, FL
20.9	N4UAV	Crawfordville N4UAV AllStar	446.1000	simplex	TONE 110.9	FM (analog)	AllStar 41434	—	Crawfordville, FL
21.1	KJ4G	Tallahassee KJ4G	443.4000	+5	TONE 131.8	FM (analog)		—	Tallahassee, FL
24.6	KG4ITD	Bristol KG4ITD	146.7150	-0.6	TONE 94.8	FM (analog)		—	Bristol, FL
24.8	NX4DN	Chattahoochee NX4DN NX4DN	441.1375	+5	CC1	DMR	NX4DN	—	Chattahoochee, FL
25.0	N4PG	Tallahassee N4PG	442.8500	+5	none	FM (analog)		—	Tallahassee, FL
25.4	K4GFD	Chattahoochee K4GFD	444.9750	+5	TSQL 94.8	FM (analog)		—	Chattahoochee, FL
32.5	KE4URL	Reno KE4URL	145.1700	-0.6	TONE 141.3	FM (analog)		—	Reno, GA
34.0	K4TLH	Wacissa K4TLH	147.0000	+0.6	TONE 94.8	FM (analog)	🗓 1 net	1 net · 115 check-ins · 36 stations	Wacissa, FL
34.0	NX4DN	Wacissa NX4DN	444.0500	+5	none	FM (analog)		—	Wacissa, FL
39.3	W4UCJ	Metcalfe W4UCJ	147.1950	+0.6	TSQL 141.3	FM (analog)		—	Metcalfe, GA
40.8	NX4DN	Metcalfe NX4DN NX4DN	444.1375	+5	CC1	DMR	NX4DN	—	Metcalfe, GA
42.0	KM4TTS	Monticello KM4TTS BM	145.4300	-0.6	CC4	DMR	BrandMeister 311454	—	Monticello, FL
42.1	WX4JEF	Monticello WX4JEF	145.4300	-0.6	TSQL 94.8	FM (analog)		—	Monticello, FL
42.9	KE4RBL	Marianna KE4RBL BM	433.3750	+5	CC1	DMR	BrandMeister 320483906	—	Marianna, FL, FL
43.4	W4FFC	Wewahitchka W4FFC	146.8650	-0.6	TONE 100.0	FM (analog)		—	Wewahitchka, FL
44.6	KS4JW	Tallahassee KS4JW	442.0000	+5	TONE 151.4	FM (analog)		—	Tallahassee, FL
44.7	W4UCJ	Thomasville W4UCJ	145.3700	-0.6	TONE 141.3	FM (analog)		—	Thomasville, GA
44.7	W4UCJ	Thomasville W4UCJ	442.6000	+5	TONE 141.3	FM (analog)		—	Thomasville, GA
45.0	W4UCJ	Thomasville W4UCJ	147.0600	+0.6	none	FM (analog)		—	Thomasville, GA
45.6	WO4J	Marianna WO4J	147.2700	+0.6	TONE 107.2	FM (analog)		—	Marianna, FL
45.8	WX4EC	Marianna WX4EC	147.0450	+0.6	TONE 123.0	FM (analog)		—	Marianna, FL
46.3	W4BKD	Marianna W4BKD	146.6700	-0.6	TSQL 123.0	FM (analog)		—	Marianna, FL
46.3	W4BKD	Marianna W4BKD	444.9500	+5	TSQL 123.0	FM (analog) (C4FM,FM)		—	Marianna, FL
48.7	WO4J	Marianna WO4J	147.0900	+0.6	TONE 67.0	FM (analog)		—	Marianna, FL
19.9	KA4EOC Offline	Tallahassee Stat KA4EOC	147.2850	+0.6	TSQL 94.8	FM (analog)		—	Tallahassee, FL