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

John B Knox

FRN 0017198599 · first licensed Dec 5, 2007 as KJ4AXO · 2 licenses on record

📻 GMRS licenses on this FRN

GMRS call	Status	Name	Location	Granted	Expires
WRXW589	Active	John B Knox	Sparta, TN	Jul 6, 2023	Jul 6, 2033

📝 FCC applications (8)

Received	File number	Service	Purpose	Status	Call
Jul 5, 2023	0010604887	GMRS	New license	Granted
Apr 3, 2018	0008160033	HAM	Duplicate license	Granted	K5JBK
Apr 2, 2018	0008157106	HAM	Administrative update	Granted	K5JBK
Mar 29, 2018	0008154395	HAM	Renewal	Granted	K5JBK
Jul 31, 2008	0003526866	HAM	Modification	Granted	K5JBK
Feb 8, 2008	0003318932	HAM	Modification	Granted	KJ4AXO
Feb 6, 2008	0003316178	HAM	Modification	Granted	KJ4AXO
Dec 5, 2007	0003250158	HAM	New license	Granted	KJ4AXO

Complete licensing history

📦 Moved: Watertown, TN → Sparta, TN

K5JBK Active Amateur Extra · vanity Feb 26, 2008 → expires Mar 29, 2028

Licensee
John B Knox

Address
541 Clarks Mill Drive
Sparta, TN 38583
35.9324, -85.4792 (street) · Grid EM75gw · CQ 4 · ITU 8 · map ↗

FRN
0017198599

Previous call
KJ4AXO (General)

Last granted
Mar 29, 2018

Effective
Apr 3, 2018

Last action
Apr 3, 2018
FCC actions (5)
- Apr 2, 2018 — Administrative update LIAUA
- Mar 29, 2018 — License renewed LIREN
- Aug 14, 2008 — License modified LIMOD
- Feb 26, 2008 — Vanity call sign granted VANGRT
- Feb 26, 2008 — License issued LIISS
KJ4AXO Canceled General Dec 5, 2007 → Feb 26, 2008 (canceled)

Licensee
John B Knox

Address
628 Roberts Rd
Watertown, TN 37184
36.0868, -86.1452 (ZIP center) · Grid EM66wc · CQ 4 · ITU 8 · map ↗

FRN
0017198599

Last granted
Dec 5, 2007

Effective
Feb 6, 2008

Last action
Feb 26, 2008
FCC actions (4)
- Feb 26, 2008 — License canceled LICAN
- Feb 6, 2008 — License modified LIMOD
- Dec 5, 2007 — License issued LIISS
- Dec 5, 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 May 7, 2018 → Oct 4, 2026 · 17 snapshots · as K5JBK
John B Knox
541 Clarks Mill Drive, Sparta, TN 38583
35.9324, -85.4792 (street) · Grid EM75gw · CQ 4 · ITU 8 · map ↗
Seen May 27, 2010 → Oct 4, 2026 · 77 snapshots · as KJ4AXO
John B Knox
628 Roberts Rd, Watertown, TN 37184
36.0868, -86.1452 (ZIP center) · Grid EM66wc · CQ 4 · ITU 8 · map ↗

Repeaters within 50 miles

68 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
2.4	KD4WX	Sparta KD4WX	443.7750	+5	TONE 123.0	FM (analog)		—	Sparta, TN
5.6	KD4WX	Sparta KD4WX	146.6850	-0.6	TONE 114.8	FM (analog)		—	Sparta, TN
5.6	KR4BT	Sparta KR4BT BM	147.1650	+0.6	TONE 123.0	FM (analog) (DMR,FM)	BrandMeister 314739	—	Sparta, TN
11.9	W4HPL	Cookeville W4HPL AllStar	147.2100	+0.6	TSQL 107.2	FM (analog)	EchoLink 822060 AllStar 626580 🗓 2 nets	2 nets · 18 check-ins · 8 stations	Cookeville, TN
12.0	K4CP	Cookeville K4CP AllStar	53.8500	-0.5	TONE 107.2	FM (analog)	AllStar 625410	—	Cookeville, TN
12.0	W4EOC	Cookeville W4EOC	444.6000	+5	TONE 107.2	FM (analog)		—	Cookeville, TN
13.8	KK4TD	Cookeville KK4TD BM	145.1100	-0.6	none	D-STAR (DMR,DV)	BrandMeister 314725	—	Cookeville, TN
14.9	W4HPL	Cookeville W4HPL	145.1100	-0.6	none	D-STAR	🗓 2 nets	2 nets · 18 check-ins · 8 stations	Cookeville, TN
15.3	N9IWJ	Sparta N9IWJ	442.6250	+5	TSQL 114.8	FM (analog)		—	Sparta, TN
16.6	KC2CBD	Cookeville KC2CBD BM	433.8750	+5	CC1	DMR	BrandMeister 3147520	—	Cookeville, TN
16.9	WA4UCE	Cookeville TTU WA4UCE	145.4300	-0.6	none	FM (analog)		—	Cookeville, TN
21.3	N9AWQ	Crossville N9AWQ WIRES-X	442.1250	+5	TSQL 162.2	FM (analog)	WIRES-X 71740	—	Crossville, TN
22.6	N4JMV	Pikeville N4JMV	444.4750	+5	TSQL 100.0	FM (analog)		—	Pikeville, TN
23.5	AE4DD	Pikeville AE4DD BM	145.3400	-0.6	CC1	DMR	BrandMeister 314482	—	Pikeville, TN
23.7	WB4CWS	McMinnville Harr WB4CWS	146.9700	-0.6	TSQL 151.4	FM (analog)		—	McMinnville, TN
25.3	N9AWQ	Crossville N9AWQ BM	434.9875	+12	CC1	DMR	BrandMeister 3131365	—	Crossville, TN
25.3	WJ9J	Crossville WJ9J	442.2250	+5	TONE 67.0	FM (analog)		—	Crossville, TN
25.3	W4KEV	Crossville Hinch W4KEV	53.9300	-0.5	none	FM (analog)	🗓 3 nets	3 nets	Crossville, TN
26.3	W4KEV	Jefferson City W4KEV	146.8950	-0.6	TONE 100.0	FM (analog)	🗓 3 nets	3 nets	Jefferson City, TN
26.6	WD4T	Ooltewah WD4T BM	446.5500	-5	CC1	DMR	BrandMeister 318699601	—	Ooltewah, TN
27.0	W8EYU	Crossville Fairf W8EYU	443.8500	+5	none	FM (analog) (FM,C4FM)	🗓 1 net	1 net · 22 check-ins · 22 stations	Crossville, TN
27.1	KW4BC	Pikeville KW4BC BM	444.4750	+5	CC1	DMR	BrandMeister 312577	—	Pikeville, TN
27.8	W8EYU	Crossville W8EYU EchoLink	146.8650	-0.6	TSQL 118.8	FM (analog) (C4FM,FM)	EchoLink 783758 🗓 1 net	1 net · 22 check-ins · 22 stations	Crossville, TN
27.9	AB4ZB	Woodbury Short AB4ZB	442.0125	+5	TSQL 107.2	FM (analog) (FM,C4FM)		—	Woodbury, TN
28.1	WB4LHO	Woodbury WB4LHO	145.4900	-0.6	TONE 100.0	FM (analog) (FM,C4FM)		—	Woodbury, TN
28.1	W4DMM	Woodbury Short W4DMM BM	440.7000	+5	CC1	DMR	BrandMeister 314726	—	Woodbury, TN
29.0	W8EYU	Crossville I-40 W8EYU	146.8950	-0.6	TONE 118.8	FM (analog)	🗓 1 net	1 net · 22 check-ins · 22 stations	Crossville, TN
29.7	AE4DD	Pikeville AE4DD AllStar	147.2850	+0.6	TONE 103.5	FM (analog)	EchoLink 17285 AllStar 52061	—	Pikeville, TN
30.0	KW4BC	Pikeville KW4BC	443.4250	+5	none	FM (analog) (FM,C4FM)		—	Pikeville, TN
30.0	N4BCT	Pikeville N4BCT AllStar	442.8750	+5	TONE 114.8	FM (analog)	AllStar 59405	—	Pikeville, TN
30.1	W4KEV	Crossville W4KEV AllStar	147.3450	+0.6	TONE 118.8	FM (analog)	AllStar 50015 🗓 3 nets	3 nets	Crossville, TN
30.1	W4KEV	Crossville W4KEV	443.8750	+5	TONE 88.5	FM (analog)	🗓 3 nets	3 nets	Crossville, TN
31.5	AB4ZB	Woodbury Pleasan AB4ZB	441.8625	+5	TONE 107.2	FM (analog)		—	Woodbury, TN
31.9	KO4LFR	Livingston Gulle KO4LFR	147.0450	+0.6	TSQL 100.0	FM (analog)		—	Livingston, TN
34.0	KU4B	Woodbury Short KU4B	145.4900	-0.6	TSQL 100.0	FM (analog) (FM,C4FM)	🗓 1 net	1 net · 176 check-ins · 58 stations	Woodbury, TN
34.0	W4YXA	Woodbury Short W4YXA	146.9100	-0.6	TSQL 114.8	FM (analog)		—	Woodbury, TN
34.0	W4CAT	Woodbury Short W4CAT	444.6500	+5	TONE 107.2	FM (analog)		—	Woodbury, TN
35.2	WR3S	Woodbury Short WR3S	147.3600	+0.6	TONE 114.8	FM (analog)		—	Woodbury, TN
36.5	W4SWA	Carthage W4SWA BM	440.8500	+5	CC1	DMR	BrandMeister 322799602	—	Carthage, TN
37.1	KJ4EVS	Carthage KJ4EVS	145.2500	-0.6	TONE 114.8	FM (analog)		—	Carthage, TN
37.1	KJ4EVS	Carthage SC EMA KJ4EVS	444.5000	+5	TONE 107.2	FM (analog)		—	Carthage, TN
38.8	KK4GGK	Dayton KK4GGK BM	440.7250	+5	CC1	DMR	BrandMeister 314727	—	Dayton, TN
39.3	KK4GGK	Dayton Lone Mtn KK4GGK AllStar	442.0750	+5	TSQL 110.9	FM (analog) (C4FM,DMR,FM)	AllStar 464400 EchoLink 942631 AllStar 464401 AllStar 464402	—	Dayton, TN
40.0	K4DPD	Dayton Evensvill K4DPD AllStar	147.3900	+0.6	TSQL 100.0	FM (analog)	AllStar 55666	—	Dayton, TN
42.7	N4UUJ	Palmer Wtr N4UUJ AllStar	146.8800	-0.6	TSQL 162.2	FM (analog)	AllStar 542460 AllStar 542461 AllStar 542462	—	Palmer, TN
43.1	K4APY	Rockwood K4APY	224.8400	-1.6	TONE 82.5	FM (analog)		—	Rockwood, TN
43.7	W4EAO	Watertown Jennin W4EAO	146.8350	-0.6	TSQL 100.0	FM (analog)		—	Watertown, TN
43.7	W4EAO	Watertown Jennin W4EAO	444.1250	+5	TSQL 100.0	FM (analog)		—	Watertown, TN
44.7	KE4RX	Rockwood Mt KE4RX	147.0150	+0.6	TSQL 110.9	FM (analog) (FM,C4FM)	🗓 1 net	1 net · 41 check-ins · 20 stations	Rockwood, TN
45.0	KE4RX	Rockwood Mt KE4RX	443.9750	+5	TSQL 110.9	FM (analog) (FM,C4FM)	🗓 1 net	1 net · 41 check-ins · 20 stations	Rockwood, TN
45.2	KE4RX	Rockwood KE4RX	441.8125	+5	none	D-STAR	🗓 1 net	1 net · 41 check-ins · 20 stations	Rockwood, TN
46.3	K4EGC	Manchester K4EGC AllStar	146.7000	-0.6	TSQL 114.8	FM (analog)	EchoLink 61799 AllStar 643210 🗓 1 net	1 net	Manchester, TN
46.3	KF4TNP	Manchester KF4TNP	443.2250	+5	TONE 127.3	FM (analog)		—	Manchester, TN
46.3	KF4TNP	Manchester KF4TNP STN	444.0750	+5	TONE 127.3	FM (analog) (DMR,FM)	AllStar 29792 STN	—	Manchester, TN
46.4	KF4TNP	Manchester KF4TNP VolNET	442.8625	+5	CC1	DMR	VolNET	—	Manchester, TN
46.4	KF4TNP	manchester KF4TNP VolNET	441.8875	+5	CC1	DMR	VolNET	—	manchester, TN
46.5	KI4KIL	Jamestown Round KI4KIL	147.0900	+0.6	none	FM (analog)		—	Jamestown, TN
46.5	KC4MJN	Jamestown Round KC4MJN	443.6250	+5	none	FM (analog)		—	Jamestown, TN
47.4	KO4ZML	Tracy City Monte KO4ZML EchoLink	145.4100	-0.6	TSQL 114.8	FM (analog) (FM,C4FM)	EchoLink 2043 WIRES-X 33225 🗓 1 net	1 net	Tracy City, TN
47.6	W4EAO	Lebanon Taylorsv W4EAO	442.1250	+5	TSQL 100.0	FM (analog)	🗓 1 net	1 net	Lebanon, TN
48.2	KP4X	Decatur KP4X AllStar	146.5400	simplex	TONE 146.2	FM (analog)	AllStar 27140	—	Decatur, TN
48.2	KG4FZR	Decatur KG4FZR	145.1500	-0.6	TONE 141.3	FM (analog)	🗓 1 net	1 net · 8 check-ins · 8 stations	Decatur, TN
48.2	KG4FZR	Decatur KG4FZR	443.2750	+5	TONE 100.0	FM (analog)	🗓 1 net	1 net · 8 check-ins · 8 stations	Decatur, TN
48.4	W4RYR	Lebanon W4RYR	443.2750	+5	TSQL 107.2	FM (analog)		—	Lebanon, TN
48.4	K4TP	Lafayette K4TP	145.0800	in 146.4800	DCS 532	FM (analog) (FM,P25)		—	Lafayette, TN
48.8	KN4WAN	Tracy City KN4WAN	440.5500	+5	none	D-STAR		—	Tracy City, TN
49.2	W4RYR	Lebanon W4RYR	443.6500	+5	TSQL 107.2	FM (analog)		—	Lebanon, TN
34.4	K4TP offline	Carthage K4TP	146.7300	-0.6	TSQL 136.5	FM (analog)		—	Carthage, TN

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Feb 8, 2008 Granted Mar 29, 2018 0003318932	KJ4AXO · John B Knox · General 628 Roberts Rd, Watertown, TN 37184 36.0868, -86.1452 (ZIP center) · Grid EM66wc · CQ 4 · ITU 8 · map ↗	1.K5JBK ✓ granted 2.K4JBK held 3.W2JBK held 4.K3JBK held 5.K8JBK held	Granted got K5JBK