N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 8:30 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

KR4YO HAM

✅ Available for a vanity request — free since Aug 14, 2023.

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

📬 QSL: LoTW user · last upload Dec 23, 2021 · eQSL AG member · QRZ · HamQTH

Not currently held · 1 holder on record · available since Aug 14, 2023

Previous holder: ROBERT S ANDERSON

Held KR4YO Apr 13, 2001 → Aug 13, 2021 · first licensed Apr 13, 2001 as KR4YO · 2 licenses · FRN 0003391935

K4RSA Active Amateur Extra · vanity Aug 13, 2021 → expires Aug 13, 2031

Licensee
ROBERT S ANDERSON

Address
13368 Teaberry Ct
Fairfax, VA 22033-1109
38.9011, -77.4074 (street) · Grid FM18hv · CQ 5 · ITU 8 · map ↗

FRN
0003391935

Previous call
KR4YO

Last granted
Aug 13, 2021

Effective
Aug 13, 2021

Last action
Aug 13, 2021
FCC actions (2)
- Aug 13, 2021 — Vanity call sign granted VANGRT
- Aug 13, 2021 — License issued LIISS
KR4YO Canceled Amateur Extra Apr 13, 2001 → Aug 13, 2021 (canceled)

Licensee
ROBERT S ANDERSON

Address
13368 Teaberry Ct
Fairfax, VA 22033-1109
38.9011, -77.4074 (street) · Grid FM18hv · CQ 5 · ITU 8 · map ↗

FRN
0003391935

Last granted
Oct 20, 2016

Effective
Dec 23, 2020

Last action
Aug 13, 2021
FCC actions (13)
- Aug 13, 2021 — License canceled LICAN
- Dec 23, 2020 — Administrative update LIAUA
- Oct 20, 2016 — License renewed LIREN
- Jul 2, 2011 — Administrative update LIAUA
- Jul 7, 2010 — Administrative update LIAUA
- Jul 22, 2008 — Administrative update LIAUA
- Apr 15, 2008 — Administrative update LIAUA
- Oct 24, 2006 — License renewed LIREN
- Jul 6, 2006 — Administrative update LIAUA
- Sep 18, 2003 — Administrative update LIAUA
- Aug 7, 2003 — Administrative update LIAUA
- Apr 13, 2001 — Administrative update LIAUA
- Apr 13, 2001 — Administrative update LIAUA

Address history

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

Seen Oct 17, 2011 → Oct 4, 2026 · 59 snapshots · as KR4YO
ROBERT S ANDERSON
13368 Teaberry Ct, Fairfax, VA 22033-1109
38.9011, -77.4074 (street) · Grid FM18hv · CQ 5 · ITU 8 · map ↗
Seen May 27, 2010 · 1 snapshot · as KR4YO
ROBERT S ANDERSON
2015 Cactus Desert Court, North Las Vegas, NV 89084-3171
36.2975, -115.1569 (ZIP center) · Grid DM26kh · CQ 3 · ITU 6 · map ↗
Seen Nov 7, 2004 · 1 snapshot · as KR4YO
ROBERT S ANDERSON
111 Parish Walk, Elgin, SC 29045-8698
34.1851, -80.8050 (ZIP center) · Grid EM94oe · CQ 5 · ITU 8 · map ↗

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KR4YO in the last 24 hours. They show up here within seconds of KR4YO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.