N9TPB FCC License Search

🕒 FCC license data updated today 9:45 am CDT · 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

KC0TO HAM

✅ Available for a vanity request — free since Jun 19, 2004.

2x2 call: Advanced and Amateur Extra licensees can request it. No pending applications list it.

📬 QSL: LoTW user · last upload Oct 9, 2003 · eQSL AG member · QRZ · HamQTH

Not currently held · 1 holder on record · available since Jun 19, 2004

Previous holder: GREGG E OLSON

Held KC0TO Sep 18, 1997 → Jun 18, 2002 · first licensed Sep 18, 1997 as KC0TO · 2 licenses · FRN 0007128069

W0MPR Active Amateur Extra · vanity Jun 18, 2002 → expires Jun 20, 2032

Licensee
GREGG E OLSON

Address
Attn: Gregg E Olson
4313 30th Street
BOULDER, CO 80301
40.0530, -105.2546 (street) · Grid DN70ib · CQ 4 · ITU 7 · map ↗

FRN
0007128069

Previous call
KC0TO (Advanced)

Last granted
May 14, 2022

Effective
May 14, 2022

Last action
May 14, 2022
FCC actions (5)
- May 14, 2022 — License renewed LIREN
- Jun 20, 2012 — License renewed LIREN
- Mar 10, 2011 — License modified LIMOD
- Jun 18, 2002 — Vanity call sign granted VANGRT
- Jun 18, 2002 — License issued LIISS
KC0TO Canceled Advanced Sep 18, 1997 → Jun 18, 2002 (canceled)

Licensee
GREGG E OLSON

Address
4313 N 30TH ST
BOULDER, CO 80301
40.0457, -105.2009 (ZIP center) · Grid DN70jb · CQ 4 · ITU 7 · map ↗

FRN
0007128069

Last granted
Sep 18, 1997

Effective
Sep 18, 1997

Last action
Jun 18, 2002
FCC actions (1)
- Jun 18, 2002 — License canceled LICAN

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 W0MPR
GREGG E OLSON
Attn: Gregg E Olson
4313 30th Street, BOULDER, CO 80301
40.0530, -105.2546 (street) · Grid DN70ib · CQ 4 · ITU 7 · map ↗
Seen Nov 7, 2004 → Oct 4, 2026 · 53 snapshots · as KC0TO
GREGG E OLSON
4313 N 30TH ST, BOULDER, CO 80301
40.0457, -105.2009 (ZIP center) · Grid DN70jb · CQ 4 · ITU 7 · map ↗
Seen Jul 26, 2012 → Apr 16, 2022 · 31 snapshots · as W0MPR
GREGG E OLSON
4313 30TH ST, BOULDER, CO 80301
40.0457, -105.2009 (ZIP center) · Grid DN70jb · CQ 4 · ITU 7 · map ↗

Others requesting KC0TO

1 application listed KC0TO as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Jun 29, 2020	Jul 17, 2020	KC0CTO · Joseph A Clarke · BROOMFIELD, CO	7	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KC0TO in the last 24 hours. They show up here within seconds of KC0TO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.