N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 26, 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)

CHRISTOPHER C TROWBRIDGE

FRN 0012771309 · first licensed Feb 15, 2005 as KB9SPB · 2 licenses on record

📻 GMRS Licenses on This FRN

GMRS call	Status	Name	Location	Granted	Expires
WQCE878	Active	Christopher C Trowbridge	Quincy, IL	Feb 8, 2020	Feb 16, 2030

📝 FCC Applications (11)

Received	File number	Service	Purpose	Status	Call
Aug 12, 2025	0011688357	HAM	Renewal	Granted	AA9CT
Aug 7, 2025	0011682054	HAM	Administrative update	Granted	AA9CT
Feb 7, 2020	0008969060	GMRS	Renewal	Granted
Oct 20, 2015	0006992789	HAM	Modification	Granted	KB9SPB
May 19, 2015	0006808229	HAM	Modification	Granted	KB9SPB
Apr 15, 2015	0006755216	HAM	Modification	Granted	KB9SPB
Feb 3, 2015	0006645006	GMRS	Renewal	Granted
Jan 28, 2010	0004106390	GMRS	Renewal	Granted
Feb 12, 2008	0003321659	HAM	Renewal	Granted	KB9SPB
Feb 14, 2005	0002045204	HAM	Administrative update	Granted	KB9SPB
Feb 11, 2005	0002043518	GMRS	New license	Granted

Complete Licensing History

AA9CT Active Amateur Extra · vanity Nov 7, 2015 → expires Nov 7, 2035

Licensee
CHRISTOPHER C TROWBRIDGE

Address
Attn: Christopher C Trowbridge
4515 Harrison St
Quincy, IL 62305
39.9119, -91.3443 (street) · Grid EM49hv · CQ 4 · ITU 7 · map ↗

FRN
0012771309

Previous call
KB9SPB (General)

Last granted
Aug 13, 2025

Effective
Aug 13, 2025

Last action
Aug 13, 2025
FCC actions (4)
- Aug 13, 2025 — License renewed LIREN
- Aug 8, 2025 — Administrative update LIAUA
- Nov 7, 2015 — Vanity call sign granted VANGRT
- Nov 7, 2015 — License issued LIISS
KB9SPB Canceled Amateur Extra Feb 15, 2005 → Nov 7, 2015 (canceled)

Licensee
CHRISTOPHER C TROWBRIDGE

Address
4515 Harrison St
Quincy, IL 62305
39.9119, -91.3443 (street) · Grid EM49hv · CQ 4 · ITU 7 · map ↗

FRN
0012771309

Last granted
Feb 13, 2008

Effective
May 19, 2015

Last action
Nov 7, 2015
FCC actions (6)
- Nov 7, 2015 — License canceled LICAN
- May 19, 2015 — License modified LIMOD
- Apr 15, 2015 — License modified LIMOD
- Feb 13, 2008 — License renewed LIREN
- Feb 16, 2005 — FCC action LTSFRN
- Feb 15, 2005 — Administrative update LIAUA

Address history

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

Seen May 19, 2015 → Oct 25, 2026 · 72 snapshots · as KB9SPB
CHRISTOPHER C TROWBRIDGE
4515 Harrison St, Quincy, IL 62305
39.9119, -91.3443 (street) · Grid EM49hv · CQ 4 · ITU 7 · map ↗
Seen May 27, 2010 → Mar 28, 2015 · 12 snapshots · as KB9SPB
CHRISTOPHER C TROWBRIDGE
2635 Midlan, QUINCY, IL 62301
39.9312, -91.3887 (ZIP center) · Grid EM49hw · CQ 4 · ITU 7 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as KB9SPB
CHRISTOPHER C TROWBRIDGE
1215 HAMPSHIRE, QUINCY, IL 62301
39.9312, -91.3887 (ZIP center) · Grid EM49hw · CQ 4 · ITU 7 · map ↗

Repeaters within 50 Miles

26 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	N0EMR	Quincy N0EMR N0EMR	442.6250	+5	CC1	DMR	N0EMR	—	Quincy, IL
2.4	W9AWE	Quincy W9AWE	441.8938	+5	none	D-STAR		—	Quincy, IL
3.8	W9AWE	Quincy W9AWE	146.9400	-0.6	TSQL 123.0	FM (analog)		—	Quincy, IL
3.8	W9AWE	Quincy W9AWE	147.0300	+0.6	TSQL 103.5	FM (analog) (FM,C4FM)		—	Quincy, IL
3.8	W9AWE	Quincy W9AWE	443.9000	+5	TSQL 103.5	FM (analog) (FM,C4FM)		—	Quincy, IL
4.3	W9AWE	Quincy W9AWE	147.1950	+0.6	TSQL 103.5	D-STAR (C4FM,DV)		—	Quincy, IL
13.5	W0KEM	Hannibal W0KEM	146.6250	-0.6	TSQL 103.5	FM (analog)		—	Hannibal, MO
14.1	W0KEM	Hannibal W0KEM	146.8800	-0.6	TONE 103.5	FM (analog)		—	Hannibal, MO
20.6	KB0YKI	Ewing KB0YKI	444.8750	+5	TSQL 100.0	FM (analog)		—	Ewing, MO
27.3	KA0EJQ	Monroe City KA0EJQ	444.2000	+5	TONE 141.3	FM (analog)	🗓 2 nets	2 nets · 18 check-ins · 13 stations	Monroe City, MO
27.5	KA0EJQ	Monroe City KA0EJQ	146.7000	-0.6	TONE 127.3	FM (analog)	🗓 2 nets	2 nets · 18 check-ins · 13 stations	Monroe City, MO
35.5	W9TRA	Pittsfield Polic W9TRA	145.4300	-0.6	TONE 103.5	FM (analog)		—	Pittsfield, IL
36.3	WA2WGY	Carthage WA2WGY AllStar	146.1200	-0.6	TONE 100.0	FM (analog)	AllStar 450171	—	Carthage, IL
36.5	KC9LMF	Carthage KC9LMF EchoLink	147.1050	+0.6	TSQL 103.5	FM (analog) (C4FM,DMR,FM)	EchoLink 137601 🗓 1 net	1 net · 40 check-ins · 22 stations	Carthage, IL
37.6	KE0PVT	Keokuk KE0PVT	442.5000	+5	TONE 146.2	FM (analog)		—	Keokuk, IA
38.4	KE9BZG	Elvaston KE9BZG AllStar	145.2100	-0.6	TSQL 97.4	FM (analog) (C4FM,FM)	AllStar 1 IRLP 1	—	Elvaston, IL
42.2	AA0RC	Vandalia AA0RC AllStar	444.1250	+5	TSQL 127.3	FM (analog) (DMR,FM)	AllStar 48010 BrandMeister 313198	—	Vandalia, MO
45.9	N0SYL	Paris N0SYL	146.8350	-0.6	TONE 127.3	FM (analog)		—	Paris, MO
47.7	KA0EJQ	Eolia KA0EJQ	145.1900	-0.6	none	FM (analog)	🗓 2 nets	2 nets · 18 check-ins · 13 stations	Eolia, MO
48.9	WF0RT	Fort Madison WF0RT	146.8650	-0.6	TSQL 100.0	FM (analog) (FM,C4FM)		—	Fort Madison, IA
49.0	KC9JIC	Dallas City KC9JIC	145.3300	-0.6	TSQL 82.5	FM (analog) (FM,C4FM)		—	Dallas City, IL
49.1	W3JAB	Nauvoo W3JAB	147.2400	+0.6	TSQL 186.2	FM (analog) (FM,P25)		—	Nauvoo, IL
49.3	W9ACU	Beardstown W9ACU	146.7150	-0.6	TSQL 123.0	FM (analog) (FM,C4FM)		—	Beardstown, IL
49.3	W9ACU	Beardstown W9ACU	443.9500	+5	TSQL 103.5	FM (analog)		—	Beardstown, IL
42.2	AA0RC Offline	Vandalia AA0RC	442.1250	+5	TSQL 127.3	FM (analog)		—	Vandalia, MO
49.0	KC9JIC Offline	Dallas City KC9JIC	145.2500	-0.6	TSQL 151.4	FM (analog)		—	Dallas City, IL

Vanity Applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Oct 20, 2015 Granted Aug 13, 2025 0006992789	KB9SPB · CHRISTOPHER C TROWBRIDGE · Amateur Extra 4515 Harrison St, Quincy, IL 62305 39.9119, -91.3443 (street) · Grid EM49hv · CQ 4 · ITU 7 · map ↗	1.AA9CT ✓ Granted	Granted got AA9CT