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

K4COS HAM

✅ Available for a vanity request — free since Mar 24, 2026.

1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.

📬 QSL: LoTW user · last upload May 13, 2016 · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Mar 24, 2026

Previous holder: Kenneth R Perry

Held K4COS Nov 6, 2010 → Mar 23, 2024 · first licensed Jun 17, 2010 as KJ4VWT · 3 licenses · FRN 0019941483

K4YZJ Active General · vanity Mar 23, 2024 → expires Mar 23, 2034

Licensee
Kenneth R Perry

Address
South Tejon Street; Suite 200
Colorado Springs, CO 80903
38.8328, -104.8138 (ZIP center) · Grid DM78ot · CQ 4 · ITU 7 · map ↗

FRN
0019941483

Previous call
K4COS (Technician)

Last granted
Mar 23, 2024

Effective
Mar 23, 2024

Last action
Mar 23, 2024
FCC actions (2)
- Mar 23, 2024 — Vanity call sign granted VANGRT
- Mar 23, 2024 — License issued LIISS
📦 Moved: Acworth, GA → Colorado Springs, CO

K4COS Canceled General · vanity Nov 6, 2010 → Mar 23, 2024 (canceled)

Licensee
Kenneth R Perry

Address
PO Box 77186
Colorado Springs, CO 80970

FRN
0019941483

Previous call
KJ4VWT (Technician)

Last granted
Aug 18, 2020

Effective
Aug 18, 2020

Last action
Mar 23, 2024
FCC actions (7)
- Mar 23, 2024 — License canceled LICAN
- Aug 18, 2020 — License renewed LIREN
- Sep 27, 2019 — Administrative update LIAUA
- Nov 26, 2013 — Administrative update LIAUA
- May 4, 2011 — Administrative update LIAUA
- Nov 6, 2010 — Vanity call sign granted VANGRT
- Nov 6, 2010 — License issued LIISS
KJ4VWT Canceled General Jun 17, 2010 → Nov 6, 2010 (canceled)

Licensee
KENNETH R PERRY

Address
2975 CEDAR MILL DR
ACWORTH, GA 30102
34.1016, -84.6452 (ZIP center) · Grid EM74qc · CQ 5 · ITU 8 · map ↗

FRN
0019941483

Last granted
Jun 17, 2010

Effective
Oct 18, 2010

Last action
Nov 6, 2010
FCC actions (5)
- Nov 6, 2010 — License canceled LICAN
- Oct 18, 2010 — License modified LIMOD
- Jun 22, 2010 — Administrative update LIAUA
- Jun 17, 2010 — License issued LIISS
- Jun 17, 2010 — 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 → Sep 27, 2026 · 11 snapshots · as K4YZJ
Kenneth R Perry
South Tejon Street; Suite 200, Colorado Springs, CO 80903
38.8328, -104.8138 (ZIP center) · Grid DM78ot · CQ 4 · ITU 7 · map ↗
Seen Apr 16, 2022 → Sep 27, 2026 · 12 snapshots · as K4COS
Kenneth R Perry
PO Box 77186
Colorado Springs, CO 80970
Seen Oct 17, 2011 → Sep 27, 2026 · 45 snapshots · as KJ4VWT
KENNETH R PERRY
2975 CEDAR MILL DR, ACWORTH, GA 30102
34.1016, -84.6452 (ZIP center) · Grid EM74qc · CQ 5 · ITU 8 · map ↗
Seen Mar 28, 2014 → May 6, 2019 · 25 snapshots · as K4COS
Kenneth R Perry
7542 Salt Grass Court, Colorado Springs, CO 80915
38.8498, -104.7170 (ZIP center) · Grid DM78pu · CQ 4 · ITU 7 · map ↗
Seen Oct 17, 2011 → Oct 22, 2013 · 8 snapshots · as K4COS
Kenneth R Perry
6764 Summer Grace Street, Colorado Springs, CO 80923
38.9267, -104.7143 (ZIP center) · Grid DM78pw · CQ 4 · ITU 7 · map ↗

Others requesting K4COS

3 applications listed K4COS as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Aug 26, 2014	Sep 13, 2014	KM4CKB · R C VAUGHT · MILTON, GA	2	Granted
Jun 30, 2014	Jul 18, 2014	KK4PQE · Charles O Stogner III · Ridgeway, SC	2	Granted
Oct 19, 2010	Nov 6, 2010	KJ4VWT · Kenneth R Perry · Acworth, GA	1	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K4COS in the last 24 hours. They show up here within seconds of K4COS beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.