N9TPB FCC License Search

🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 2, 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

N5OSU HAM

Technician class licensed since 2003 (23 yrs) N5OSU since 2013 · previously KF5DDE, K0DEN, KC0OWY Weatherford, OK grid EM05pm LoTW user 14 repeaters within 50 mi

🔒 Not available — currently licensed, through Feb 22, 2033. If it isn't renewed, it opens for vanity requests Feb 23, 2035.

📬 QSL: LoTW user · last upload May 31, 2013 as previous call K0DEN · none yet as N5OSU · not eQSL AG · QRZ · HamQTH

📝 N5OSU has filed vanity applications before — latest filed Jan 11, 2013 · what was requested

Currently held by Curt SCHMAHL · 2 holders on record

Current holder: Curt SCHMAHL

Held N5OSU Jan 29, 2013 → present · first licensed Jan 24, 2003 as KC0OWY · 4 licenses · FRN 0008230799

📦 Moved: Perkins, OK → Weatherford, OK

N5OSU Active Technician · vanity Jan 29, 2013 → expires Feb 22, 2033

Licensee
Curt SCHMAHL

Address
910 N. Indiana St
Weatherford, OK 73096
35.5344, -98.7023 (street) · Grid EM05pm · CQ 4 · ITU 7 · map ↗

FRN
0008230799

Previous call
KF5DDE

Last granted
Feb 22, 2023

Effective
Feb 22, 2023

Last action
Feb 22, 2023
FCC actions (6)
- Feb 22, 2023 — License renewed LIREN
- Sep 25, 2020 — Administrative update LIAUA
- Jun 21, 2018 — Administrative update LIAUA
- Aug 16, 2016 — Administrative update LIAUA
- Jan 29, 2013 — Vanity call sign granted VANGRT
- Jan 29, 2013 — License issued LIISS
KF5DDE Canceled Technician Jun 25, 2003 → Jan 29, 2013 (canceled)

Licensee
CURTISS R SCHMAHL

Address
1007 Lewis St
Perkins, OK 74059
35.9717, -97.0676 (ZIP center) · Grid EM15lx · CQ 4 · ITU 7 · map ↗

FRN
0008230799

Previous call
K0DEN

Last granted
Jun 25, 2003

Effective
Jan 12, 2013

Last action
Jan 29, 2013
FCC actions (5)
- Jan 29, 2013 — License canceled LICAN
- Jan 12, 2013 — Administrative update LIAUA
- Feb 3, 2012 — Administrative update LIAUA
- Sep 18, 2009 — Systematic call sign granted SYSGRT
- Sep 18, 2009 — License issued LIISS
📦 Moved: Aurora, CO → Perkins, OK

K0DEN Canceled Technician · vanity Jun 25, 2003 → Sep 18, 2009 (canceled)

Licensee
CURTISS R SCHMAHL

Address
Attn: Curtiss R. Schmahl
901 Sharp St.
Perkins, OK 74059
35.9717, -97.0676 (ZIP center) · Grid EM15lx · CQ 4 · ITU 7 · map ↗

FRN
0008230799

Previous call
KC0OWY

Last granted
Jun 25, 2003

Effective
Sep 16, 2009

Last action
Sep 18, 2009
FCC actions (6)
- Sep 18, 2009 — License canceled LICAN
- Sep 16, 2009 — Administrative update LIAUA
- Sep 28, 2007 — Administrative update LIAUA
- May 10, 2006 — Administrative update LIAUA
- Jun 25, 2003 — Vanity call sign granted VANGRT
- Jun 25, 2003 — License issued LIISS
KC0OWY Canceled Technician Jan 24, 2003 → Jun 25, 2003 (canceled)

Licensee
CURTISS R SCHMAHL

Address
2780 So. Idalia St.
Aurora, CO 80013
39.6615, -104.7658 (ZIP center) · Grid DM79op · CQ 4 · ITU 7 · map ↗

FRN
0008230799

Last granted
Jan 24, 2003

Effective
May 20, 2003

Last action
Jun 25, 2003
FCC actions (3)
- Jun 25, 2003 — License canceled LICAN
- May 20, 2003 — License modified LIMOD
- Jan 24, 2003 — License issued LIISS

Address history

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

Seen Apr 27, 2024 → Sep 27, 2026 · 11 snapshots · as N5OSU
Curt SCHMAHL
910 N. Indiana St, Weatherford, OK 73096
35.5344, -98.7023 (street) · Grid EM05pm · CQ 4 · ITU 7 · map ↗
Seen Feb 18, 2013 → Sep 27, 2026 · 58 snapshots · as KF5DDE
CURTISS R SCHMAHL
1007 Lewis St, Perkins, OK 74059
35.9717, -97.0676 (ZIP center) · Grid EM15lx · CQ 4 · ITU 7 · map ↗
Seen May 27, 2010 → Sep 27, 2026 · 49 snapshots · as K0DEN
CURTISS R SCHMAHL
Attn: Curtiss R. Schmahl
901 Sharp St., Perkins, OK 74059
35.9717, -97.0676 (ZIP center) · Grid EM15lx · CQ 4 · ITU 7 · map ↗
Seen Nov 7, 2004 → Sep 27, 2026 · 48 snapshots · as KC0OWY
CURTISS R SCHMAHL
2780 So. Idalia St., Aurora, CO 80013
39.6615, -104.7658 (ZIP center) · Grid DM79op · CQ 4 · ITU 7 · map ↗
Seen Apr 16, 2022 · 1 snapshot · as N5OSU
Curt SCHMAHL
918 Delarice St Apt. 1, Weatherford, OK 73096
35.5128, -98.7221 (ZIP center) · Grid EM05pm · CQ 4 · ITU 7 · map ↗
Seen Sep 3, 2018 → May 6, 2019 · 3 snapshots · as N5OSU
Curt SCHMAHL
4671 S. Jasper St, Aurora, CO 80015
39.6281, -104.7933 (ZIP center) · Grid DM79op · CQ 4 · ITU 7 · map ↗
Seen Nov 4, 2016 → May 7, 2018 · 9 snapshots · as N5OSU
CURTISS SCHMAHL
331364 E Hwy 105, Wellston, OK 74881
35.7145, -97.0795 (ZIP center) · Grid EM15lr · CQ 4 · ITU 7 · map ↗
Seen May 28, 2012 → Jul 26, 2012 · 2 snapshots · as KF5DDE
CURTISS R SCHMAHL
Attn: Curtiss R. Schmahl
PO Box 174
204 N. First St, Verden, OK 73092
35.1312, -98.0738 (ZIP center) · Grid EM05xd · CQ 4 · ITU 7 · map ↗

Previous holder: PAT E GRIMES

Held N5OSU Oct 13, 1999 → Oct 13, 2009 · first licensed Oct 13, 1999 as N5OSU · 1 license · FRN 0002135671

N5OSU Expired Technician Oct 13, 1999 → Oct 13, 2009 (expired)

Licensee
PAT E GRIMES

Address
BOX 535
SILVER CITY, NM 88062

FRN
0002135671

Previous call
KB5JDM (Technician Plus)

Last granted
Oct 13, 1999

Effective
Oct 13, 1999

Last action
Oct 14, 2011
FCC actions (3)
- Oct 14, 2011 — License expired LIEXP
- Jan 16, 2009 — Authorization printed AUTHPR
- Oct 13, 1999 — License renewed LIREN

Address history

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

Seen Nov 7, 2004 → Sep 27, 2026 · 47 snapshots · as N5OSU
PAT E GRIMES
BOX 535, SILVER CITY, NM 88062

Vanity applications filed by N5OSU

Calls this licensee has asked the FCC for, newest first, in their order of preference. The FCC processes applications 18 days after filing; "likely award" is our estimate from every pending application in filing order.

Filed · Award	Applicant	Requested (in order)	Status
Filed Jan 11, 2013 Granted Feb 22, 2023 0005600749	KF5DDE · CURTISS R SCHMAHL · Technician Attn: Curtiss R. Schmahl · 1007 Lewis St, Perkins, OK 74059 35.9717, -97.0676 (ZIP center) · Grid EM15lx · CQ 4 · ITU 7 · map ↗	1.N5OSU ✓ granted 2.N5STW held 3.N5CRS held 4.K5OKC held	Granted got N5OSU
Filed Aug 20, 2012 Award date was Sep 7, 2012 0005356436	KF5DDE · CURTISS R SCHMAHL · Technician 331360 E Highway 105, Wellston, OK 74881 35.7145, -97.0795 (ZIP center) · Grid EM15lr · CQ 4 · ITU 7 · map ↗	1.K5CWS held	Dismissed
Filed Jun 5, 2003 Award date was Jun 23, 2003 0001336304	KC0OWY · CURTISS R SCHMAHL · Technician 2780 So. Idalia St., Aurora, CO 80013 39.6615, -104.7658 (ZIP center) · Grid DM79op · CQ 4 · ITU 7 · map ↗	1.K0DEN held 2.N0DEN held 3.K0RER 4.W0ELL	Granted

Others requesting N5OSU

1 application listed N5OSU as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Jan 11, 2013	Jan 29, 2013	KF5DDE · CURTISS R SCHMAHL · Perkins, OK	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for N5OSU in the last 24 hours. They show up here within seconds of N5OSU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.

Repeaters within 50 miles

14 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
0.6	KI5GXD	Weatherford KI5GXD BM	145.3100	-0.6	CC1	DMR	BrandMeister 313558	—	Weatherford, OK
15.5	K5LVC	Clinton K5LVC WIRES-X	445.9500	-5		Fusion (C4FM)	WIRES-X 03315	—	Clinton, OK
20.2	WD5M	Alfalfa Perry WD5M AllStar	145.1100	-0.6	DCS 712	FM (analog)	AllStar 516227 EchoLink 300803 IRLP 7658 AllStar 515402	—	Alfalfa, OK
23.3	W5GLD	Watonga W5GLD	442.3750	+5	DCS 223	FM (analog)		—	Watonga, OK
33.1	AE5CJ	Calumet AE5CJ	146.6100	-0.6	none	FM (analog) (FM,C4FM)		—	Calumet, OK
33.1	AE5DN	Calumet AE5DN BM	444.3250	+5	CC1	DMR	BrandMeister 314000	—	Calumet, OK
38.0	WX5LAW	Anadarko WX5LAW	147.2700	+0.6	none	FM (analog)		—	Anadarko, OK
40.4	K5ELK	Elk City K5ELK	146.6850	-0.6	none	D-STAR		—	Elk City, OK
40.4	K5ELK	Elk City K5ELK	443.0250	+5	none	D-STAR		—	Elk City, OK
42.9	N5CH	Elk City N5CH BM	147.2250	+0.6	CC1	DMR	BrandMeister 312748	—	Elk City, OK
44.0	K5WCO	Elk City K5WCO	146.7600	-0.6	TSQL 88.5	FM (analog)	🗓 1 net	1 net	Elk City, OK
44.0	W5GY	Elk City W5GY	147.2250	+0.6	CC1	DMR		—	Elk City, OK
45.3	K5WCO	Elk City K5WCO	444.5250	+5	TSQL 141.3	FM (analog)		—	Elk City, OK
46.0	K5ELK	Elk City K5ELK	1290.0000	-20	none	D-STAR		—	Elk City, OK