N9TPB FCC License Search

🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 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 H MAYER

FRN 0017185091 · first licensed Nov 30, 2007 as N0JCM · 2 licenses on record

📝 FCC applications (5)

Received	File number	Service	Purpose	Status	Call
Jul 31, 2026	0012136287	HAM	Renewal	Granted	KW2DX
Jul 21, 2016	0007349452	HAM	Modification	Granted	N0JCM
Apr 25, 2016	0007241856	HAM	Modification	Granted	N0JCM
Mar 16, 2016	0007189040	HAM	Modification	Granted	N0JCM
Nov 30, 2007	0003245384	HAM	Renewal + modification	Granted	N0JCM

Complete licensing history

KW2DX Active Amateur Extra · vanity Aug 9, 2016 → expires Aug 9, 2036

Licensee
JOHN H MAYER

Address
Attn: John H Mayer
500 37TH AVE N
CLINTON, IA 52732
41.8883, -90.1825 (street) · Grid EN41vv · CQ 4 · ITU 7 · map ↗

FRN
0017185091

Previous call
N0JCM (General)

Last granted
Aug 1, 2026

Effective
Aug 1, 2026

Last action
Aug 1, 2026
FCC actions (3)
- Aug 1, 2026 — License renewed LIREN
- Aug 9, 2016 — Vanity call sign granted VANGRT
- Aug 9, 2016 — License issued LIISS
N0JCM Canceled Amateur Extra Nov 30, 2007 → Aug 9, 2016 (canceled)

Licensee
JOHN H MAYER

Address
500 37TH AVE N
CLINTON, IA 52732
41.8883, -90.1825 (street) · Grid EN41vv · CQ 4 · ITU 7 · map ↗

FRN
0017185091

Last granted
Nov 30, 2007

Effective
Apr 25, 2016

Last action
Aug 9, 2016
FCC actions (5)
- Aug 9, 2016 — License canceled LICAN
- Apr 25, 2016 — License modified LIMOD
- Mar 16, 2016 — License modified LIMOD
- Nov 30, 2007 — License renewed LIREN
- Nov 30, 2007 — FCC action LITIN

Address history

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

Seen May 27, 2010 → Oct 4, 2026 · 72 snapshots · as N0JCM
JOHN H MAYER
500 37TH AVE N, CLINTON, IA 52732
41.8883, -90.1825 (street) · Grid EN41vv · CQ 4 · ITU 7 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as N0JCM
JOHN H MAYER
RR 3 BOX 1, CLINTON, IA 52732
41.8910, -90.2530 (ZIP center) · Grid EN41uv · CQ 4 · ITU 7 · map ↗

Repeaters within 50 miles

39 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
3.0	KN0BS	Clinton KN0BS	224.1800	-1.6	TONE 136.5	FM (analog)		—	Clinton, IA
4.4	W0CS	Clinton W0CS	145.4300	-0.6	TSQL 100.0	FM (analog)		—	Clinton, IA
4.4	KD0WY	Clinton KD0WY internet	147.3150	+0.6	TSQL 114.8	FM (analog) (C4FM,DMR,FM)	WIRES-X 84361 internet	—	Clinton, IA
12.4	KA9QYS	Morrison KA9QYS	145.2100	-0.6	TSQL 114.8	FM (analog) (FM,C4FM)		—	Morrison, IL
21.3	KW0D	Argo KW0D	224.1000	-1.6	none	FM (analog)		—	Argo, IA
24.3	K0JXC	Springbrook K0JXC	147.0600	+0.6	TSQL 192.8	FM (analog) (FM,C4FM)		—	Springbrook, IA
26.0	W9MEP	Sterling W9MEP	146.8500	-0.6	TSQL 114.8	FM (analog)		—	Sterling, IL
26.1	W0BXR	Eldridge River W0BXR	146.8800	-0.6	TSQL 77.0	FM (analog) (C4FM,FM)	🗓 2 nets	2 nets · 21 check-ins · 14 stations	Eldridge, IA
27.0	W9MVG	Geneseo W9MVG	444.8750	+5	TONE 136.5	FM (analog)		—	Geneseo, IL
27.0	K9KQA	Geneseo K9KQA BM	439.5500	in 433.5500	CC1	DMR	BrandMeister 3215533	—	Geneseo, IL
27.1	N9ORQ	Tampico N9ORQ	146.6250	-0.6	TSQL 114.8	FM (analog)		—	Tampico, IL
27.5	WX9WL	Sterling WX9WL	444.0250	+5	TSQL 82.5	FM (analog)		—	Sterling, IL
28.6	KB9LOB	Bettendorf North KB9LOB	444.9000	+5	TSQL 156.7	FM (analog)		—	Bettendorf, IA
29.4	KF0WYY	Davenport SC EMA KF0WYY BM	442.6000	+5	CC1	DMR	BrandMeister 315016	—	Davenport, IA
29.7	W9SBA	Elizabeth W9SBA	147.3300	+0.6	TSQL 250.3	FM (analog)		—	Elizabeth, IL
31.7	W0BXR	Davenport SAU W0BXR WIRES-X	146.9400	-0.6	DG-ID 00-00	Fusion (C4FM)	WIRES-X 33765 🗓 2 nets	2 nets · 21 check-ins · 14 stations	Davenport, IA
31.7	KB9DBG	Polo KB9DBG	147.0450	+0.6	TSQL 74.4	FM (analog)		—	Polo, IL
32.0	W0BXR	Davenport KWQC W0BXR	146.7000	-0.6	TSQL 77.0	FM (analog) (FM,C4FM)	🗓 2 nets	2 nets · 21 check-ins · 14 stations	Davenport, IA
32.4	KD0JJG	Davenport Missis KD0JJG WIRES-X	146.6400	-0.6	TSQL 107.2	FM (analog) (C4FM,DMR,DV,FM)	WIRES-X 9631 BrandMeister TGIF	—	Davenport, IA
33.2	W9WRL	Rock Island W9WRL	146.7750	-0.6	none	FM (analog)		—	Rock Island, IL
33.4	WX9WL	Dixon WX9WL EchoLink	146.9700	-0.6	TSQL 82.5	FM (analog)	EchoLink 153725	—	Dixon, IL
34.0	N0LGM	Wheatland N0LGM	146.7300	-0.6	TSQL 94.8	FM (analog) (FM,C4FM)		—	Wheatland, IA
35.6	W9QCR	Rock Island W9QCR	440.8313	+5	none	D-STAR		—	Rock Island, IL
38.9	W9DXN	Dixon W9DXN IRLP	444.8000	+5	TSQL 114.8	FM (analog) (C4FM,FM)	IRLP 4350 WIRES-X 93240	—	Dixon, IL
38.9	N0AE	Dixon N0AE IRLP	444.8000	+5	DG-ID 01	Fusion (C4FM)	IRLP 4350 WIRES-X 93240	—	Dixon, IL
40.3	KB9RNT	Freeport KB9RNT	147.3900	+0.6	TSQL 114.8	FM (analog)		—	Freeport, IL
40.3	W9SBA	Freeport W9SBA	442.0000	+5	TSQL 146.2	FM (analog)		—	Freeport, IL
40.3	KB9RNT	Freeport KB9RNT	443.2750	+5	TSQL 114.8	FM (analog)		—	Freeport, IL
41.0	KV4AA	Geneseo KV4AA	444.5000	+5		Fusion (C4FM)		—	Geneseo, IL
45.6	KA9MCC	Amboy KA9MCC AllStar	447.9250	-5	TONE 123.0	FM (analog)	AllStar 41450	—	Amboy, IL
45.7	W9GFD	Kewanee Abilitie W9GFD	442.1750	+5	TSQL 225.7	FM (analog) (FM,C4FM)	🗓 1 net	1 net · 3 check-ins · 3 stations	Kewanee, IL
46.4	KD9HAE	Hazel Green KD9HAE	443.0688	+5	CC?	DMR		—	Hazel Green, WI
47.7	N9WSQ	Freeport N9WSQ	147.3000	+0.6	TSQL 88.5	FM (analog)		—	Freeport, IL
48.5	KD9ABX	Princeton 911 KD9ABX	444.9250	+5	TSQL 118.8	FM (analog) (FM,C4FM)		—	Princeton, IL
49.0	N9PNO	Dubuque N9PNO	444.2250	+5	none	D-STAR		—	Dubuque, IA
49.4	K0WLC	Tipton K0WLC BM	444.0750	+5	CC2	DMR	BrandMeister 311958	—	Tipton, IA
49.9	N9ST	Chana N9ST	147.1650	+0.6	TSQL 146.2	FM (analog) (FM,P25)		—	Chana, IL
29.4	KC0EEC offline	Davenport KC0EEC BM	442.6000	+5	CC1	DMR	BrandMeister 313580	—	Davenport, IA
48.3	N0MRZ offline	Wilton N0MRZ BM	444.0750	+5	CC2	DMR	BrandMeister 312856	—	Wilton, IA

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Jul 21, 2016 Granted Aug 1, 2026 0007349452	N0JCM · JOHN H MAYER · Amateur Extra Attn: John H Mayer · 500 37TH AVE N, CLINTON, IA 52732 41.8883, -90.1825 (street) · Grid EN41vv · CQ 4 · ITU 7 · map ↗	1.KW2DX ✓ granted 2.N0CM held	Granted got KW2DX