N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 5, 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

CONOR A CALLAHAN

FRN 0016072688 · first licensed Feb 6, 2007 as KB3ONC · 3 licenses on record

📝 FCC applications (10)

Received	File number	Service	Purpose	Status	Call
Nov 7, 2022	0010269165	HAM	Administrative update	Granted	KC0CO
Mar 9, 2021	0009446189	HAM	Modification	Granted	AJ6KK
Jun 25, 2020	0009126297	HAM	Administrative update	Granted	AJ6KK
Jul 9, 2019	0008718306	HAM	Modification	Granted	KB3ONC
Oct 23, 2017	0007967811	HAM	Renewal	Granted	KB3ONC
Jul 6, 2015	0006862948	HAM	Administrative update	Granted	KB3ONC
Aug 6, 2014	0006414252	HAM	Administrative update	Granted	KB3ONC
Mar 26, 2012	0005132837	HAM	Administrative update	Granted	KB3ONC
May 1, 2007	0003013631	HAM	Administrative update	Granted	KB3ONC
Feb 6, 2007	0002903627	HAM	New license	Granted	KB3ONC

Complete licensing history

📦 Moved: Denver, CO → Buena Vista, CO

KC0CO Active Amateur Extra · vanity Mar 27, 2021 → expires Mar 27, 2031

Licensee
CONOR A CALLAHAN

Address
16663 Holly Ct
Buena Vista, CO 81211
38.8731, -106.1787 (street) · Grid DM68vu · CQ 4 · ITU 7 · map ↗

FRN
0016072688

Previous call
AJ6KK (Technician)

Last granted
Mar 27, 2021

Effective
Nov 8, 2022

Last action
Nov 8, 2022
FCC actions (3)
- Nov 8, 2022 — Administrative update LIAUA
- Mar 27, 2021 — Vanity call sign granted VANGRT
- Mar 27, 2021 — License issued LIISS
📦 Moved: San Francisco, CA → Denver, CO

AJ6KK Canceled Amateur Extra Oct 24, 2017 → Mar 27, 2021 (canceled)

Licensee
CONOR A CALLAHAN

Address
1286 Raleigh St
Denver, CO 80204
39.7348, -105.0207 (ZIP center) · Grid DM79lr · CQ 4 · ITU 7 · map ↗

FRN
0016072688

Previous call
KB3ONC (Technician)

Last granted
Oct 24, 2017

Effective
Jun 26, 2020

Last action
Mar 27, 2021
FCC actions (4)
- Mar 27, 2021 — License canceled LICAN
- Jun 26, 2020 — Administrative update LIAUA
- Jul 9, 2019 — Systematic call sign granted SYSGRT
- Jul 9, 2019 — License issued LIISS
KB3ONC Canceled Amateur Extra Feb 6, 2007 → Jul 9, 2019 (canceled)

Licensee
CONOR A CALLAHAN

Address
PO Box 426028
San Francisco, CA 94142

FRN
0016072688

Last granted
Oct 24, 2017

Effective
Jul 9, 2019

Last action
Jul 9, 2019
FCC actions (8)
- Jul 9, 2019 — License canceled LICAN
- Oct 24, 2017 — License renewed LIREN
- Jul 7, 2015 — Administrative update LIAUA
- Aug 7, 2014 — Administrative update LIAUA
- Mar 27, 2012 — Administrative update LIAUA
- May 2, 2007 — Administrative update LIAUA
- Feb 6, 2007 — License issued LIISS
- Feb 6, 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 Apr 27, 2024 → Oct 4, 2026 · 12 snapshots · as KC0CO
CONOR A CALLAHAN
16663 Holly Ct, Buena Vista, CO 81211
38.8731, -106.1787 (street) · Grid DM68vu · CQ 4 · ITU 7 · map ↗
Seen Apr 16, 2022 → Oct 4, 2026 · 14 snapshots · as AJ6KK
CONOR A CALLAHAN
1286 Raleigh St, Denver, CO 80204
39.7348, -105.0207 (ZIP center) · Grid DM79lr · CQ 4 · ITU 7 · map ↗
Seen Aug 2, 2015 → Oct 4, 2026 · 33 snapshots · as KB3ONC
CONOR A CALLAHAN
PO Box 426028
San Francisco, CA 94142
Seen Mar 28, 2015 → Jun 6, 2015 · 3 snapshots · as KB3ONC
CONOR A CALLAHAN
2022 Eleanore Dr Apt 102, Glendale, CA 91206
34.1604, -118.2138 (ZIP center) · Grid DM04vd · CQ 3 · ITU 6 · map ↗
Seen May 28, 2012 → May 22, 2014 · 8 snapshots · as KB3ONC
CONOR A CALLAHAN
152 CAPETOWN DR, ALAMEDA, CA 94502
37.7395, -122.2395 (ZIP center) · Grid CM87vr · CQ 3 · ITU 6 · map ↗
Seen May 27, 2010 → Nov 10, 2011 · 3 snapshots · as KB3ONC
CONOR A CALLAHAN
30 HINES COURT, OLNEY, MD 20832
39.1503, -77.0783 (ZIP center) · Grid FM19ld · CQ 5 · ITU 8 · map ↗

Repeaters within 50 miles

34 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
11.1	W0LSD	Nathrop W0LSD	146.7450	-0.6	TONE 100.0	FM (analog)		—	Nathrop, CO
11.4	K0NR	Hartsel TC Pass K0NR	447.7250	-5	TSQL 100.0	FM (analog)		—	Hartsel, CO
20.5	N0SZ	Fairplay N0SZ	446.7625	-5	CC7	DMR	🗓 1 net	1 net · 30 check-ins · 13 stations	Fairplay, CO
23.8	AB0PC	Fairplay Sacrame AB0PC AllStar	447.1250	-5	TSQL 103.5	FM (analog)	AllStar 45840	—	Fairplay, CO
25.3	N0SZ	Salida Methodist N0SZ RMHAM	446.8125	-5	CC7	DMR	RMHAM 🗓 1 net	1 net · 30 check-ins · 13 stations	Salida, CO
25.8	KF0KSB	Salida KF0KSB BM	430.4500	in 439.4500	CC7	DMR	BrandMeister 319539201	—	Salida, CO
26.1	K7PFJ	Fairplay K7PFJ RMHR	446.7625	+0.6	CC7	DMR	RMHR	—	Fairplay, CO
26.8	AB0PC	Fairplay Beaver AB0PC AllStar	147.0900	+0.6	TSQL 100.0	FM (analog)	AllStar 45840	—	Fairplay, CO
26.8	N0ZSN	Leadville Quail N0ZSN	147.2400	+0.6	TSQL 156.7	FM (analog)		—	Leadville, CO
26.9	KD0MRC	Maysville KD0MRC	145.3250	-0.6	TONE 100.0	FM (analog)		—	Maysville, CO
27.1	N0SZ	Boulder Lee Hl N0SZ RMHAM	445.0500	-5	CC9	DMR	RMHAM RMHR 🗓 1 net	1 net · 30 check-ins · 13 stations	Boulder, CO
28.2	KB0VJJ	Leadville Mosqui KB0VJJ	145.4450	-0.6	TONE 88.5	FM (analog)	🗓 1 net	1 net · 18 check-ins · 18 stations	Leadville, CO
30.0	KC0CVU	Salida Methodist KC0CVU	145.2950	-0.6	TONE 107.2	FM (analog)	🗓 1 net	1 net · 16 check-ins · 16 stations	Salida, CO
30.3	KD0QPG	Salida Methodist KD0QPG	446.9750	-5	none	D-STAR		—	Salida, CO
30.3	KC0CVU	Salida Methodist KC0CVU AllStar	449.6500	-5	TONE 107.2	FM (analog)	AllStar 620591 🗓 1 net	1 net · 16 check-ins · 16 stations	Salida, CO
30.8	WA6IFI	Salida Methodist WA6IFI	927.8625	in 902.0250	none	P25		—	Salida, CO
37.3	WB0QMR	Silverthorne WB0QMR AllStar	146.7000	-0.6	TONE 107.2	FM (analog)	IRLP 3972 AllStar 506063	—	Silverthorne, CO
37.8	AA0BF	Fairplay AA0BF AllStar	447.1250	-5	TONE 103.5	FM (analog)	AllStar 45840	—	Fairplay C0, CO
37.8	NX0G	Lake George Badg NX0G	146.6850	-0.6	TONE 107.2	FM (analog)		—	Lake George, CO
37.8	KC0CVU	Lake George Badg KC0CVU	147.3600	+0.6	TONE 107.2	FM (analog)	🗓 1 net	1 net · 16 check-ins · 16 stations	Lake George, CO
39.5	KD0NU	Aspen Mtn KD0NU AllStar	447.0500	-5	TSQL 107.2	FM (analog) (C4FM,FM)	WIRES-X 50459 AllStar 40249	—	Aspen, CO
41.0	KD0NU	Aspen KD0NU AllStar	442.3000	+5	TONE 136.5	FM (analog)	AllStar 516344	—	Aspen, CO
41.7	KD0NU	Aspen KD0NU WIRES-X	442.0500	+5	DG-ID 00-00	Fusion (C4FM)	WIRES-X 50459	—	Aspen, CO
43.9	KK7PPV	Breckenridge KK7PPV	443.0500	+5	none	D-STAR		—	Breckenridge, CO
44.6	N2NXQ	Aspen N2NXQ IRLP	444.9250	simplex	TSQL 114.8	FM (analog)	IRLP 7418	—	Aspen, CO
44.8	KC0CVU	Lake George KC0CVU	449.7000	-5	TONE 107.2	FM (analog)	🗓 1 net	1 net · 16 check-ins · 16 stations	Lake George, CO
46.2	WB0QCL	Gunnison WB0QCL	147.1200	+0.6	none	FM (analog)		—	Gunnison, CO
47.0	K0RV	Snowmass Village K0RV	146.6700	-0.6	TONE 107.2	FM (analog)		—	Snowmass Village, CO
48.8	K0MGL	Four Mile Teller K0MGL AllStar	448.6500	-5	TONE 103.5	FM (analog)	AllStar 582120	—	Four Mile, Teller, CO
39.7	KD0NU offline	Aspen KD0NU IRLP	446.8750	simplex	none	FM (analog)	IRLP 7052	—	Aspen, CO
41.0	KB0VJJ offline	Breckenridge KB0VJJ	147.3900	+0.6	TONE 88.5	FM (analog)	🗓 1 net	1 net · 18 check-ins · 18 stations	Breckenridge, CO
41.9	N0SZ offline	Breckenridge Bal N0SZ RMHAM	445.0875	-5	CC7	DMR	RMHAM 🗓 1 net	1 net · 30 check-ins · 13 stations	Breckenridge, CO
47.0	K0VQ offline	Rifle K0VQ IRLP	446.1000	simplex	TSQL 100.0	FM (analog)	IRLP 7694	—	Rifle, CO
49.8	KE0CO offline	Burien KE0CO	434.4000	-5	CC?	DMR		—	Burien, WA

Vanity applications

Filed · Award	Applicant	Requested (in order)	Status
Filed Mar 9, 2021 Granted Mar 27, 2021 0009446189	AJ6KK · CONOR A CALLAHAN · Amateur Extra 1286 Raleigh St, Denver, CO 80204 39.7348, -105.0207 (ZIP center) · Grid DM79lr · CQ 4 · ITU 7 · map ↗	1.KC0CO ✓ granted 2.KC0AC available	Granted got KC0CO