N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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

W5URT HAM

✅ Available for a vanity request — free since Aug 5, 2025.

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

📬 QSL: LoTW user · last upload Jan 22, 2023 · not eQSL AG · QRZ · HamQTH

Not currently held · 2 holders on record · available since Aug 5, 2025

Previous holder: Sean A Linkenheimer

Held W5URT Dec 13, 2022 → Aug 4, 2023 · first licensed Nov 24, 2022 as KI5YXN · 3 licenses · FRN 0032934820

N5LNK Active General · vanity Aug 4, 2023 → expires Aug 4, 2033

Licensee
Sean A Linkenheimer

Address
5007 Birch Manor Ln
Katy, TX 77494
29.7176, -95.8090 (street) · Grid EL29cr · CQ 4 · ITU 7 · map ↗

FRN
0032934820

Previous call
W5URT (Technician)

Last granted
Aug 4, 2023

Effective
Aug 4, 2023

Last action
Aug 4, 2023
FCC actions (2)
- Aug 4, 2023 — Vanity call sign granted VANGRT
- Aug 4, 2023 — License issued LIISS
W5URT Canceled General · vanity Dec 13, 2022 → Aug 4, 2023 (canceled)

Licensee
Sean A Linkenheimer

Address
5007 Birch Manor Ln
Katy, TX 77494
29.7176, -95.8090 (street) · Grid EL29cr · CQ 4 · ITU 7 · map ↗

FRN
0032934820

Previous call
KI5YXN (Technician)

Last granted
Dec 13, 2022

Effective
Jun 12, 2023

Last action
Aug 4, 2023
FCC actions (4)
- Aug 4, 2023 — License canceled LICAN
- Jun 12, 2023 — License modified LIMOD
- Dec 13, 2022 — Vanity call sign granted VANGRT
- Dec 13, 2022 — License issued LIISS
KI5YXN Canceled Technician Nov 24, 2022 → Dec 13, 2022 (canceled)

Licensee
Sean Linkenheimer

Address
5007 Birch Manor Ln
Katy, TX 77494
29.7176, -95.8090 (street) · Grid EL29cr · CQ 4 · ITU 7 · map ↗

FRN
0032934820

Last granted
Nov 24, 2022

Effective
Nov 24, 2022

Last action
Dec 13, 2022
FCC actions (3)
- Dec 13, 2022 — License canceled LICAN
- Nov 24, 2022 — License issued LIISS
- Nov 24, 2022 — 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 · 36 snapshots · as KI5YXN
Sean Linkenheimer
5007 Birch Manor Ln, Katy, TX 77494
29.7176, -95.8090 (street) · Grid EL29cr · CQ 4 · ITU 7 · map ↗

Previous holder: NOEL C OLMSTEAD

Held W5URT Apr 12, 1988 → Apr 12, 1998 · first licensed Apr 12, 1988 as W5URT · 1 license · no FRN on file (pre-2001 records)

W5URT Expired Advanced Apr 12, 1988 → Apr 12, 1998 (expired)

Licensee
NOEL C OLMSTEAD

Address
7304 GOOD SAMARITAN CT 216
EL PASO, TX 79912
31.8486, -106.5343 (ZIP center) · Grid DM61ru · CQ 4 · ITU 7 · map ↗

Last granted
Apr 12, 1988

Effective
Apr 12, 1988

Last action
Apr 13, 2000
FCC actions (1)
- Apr 13, 2000 — License expired LIEXP

Address history

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

Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as W5URT
NOEL C OLMSTEAD
7304 GOOD SAMARITAN CT 216, EL PASO, TX 79912
31.8486, -106.5343 (ZIP center) · Grid DM61ru · CQ 4 · ITU 7 · map ↗

Others requesting W5URT

3 applications listed W5URT as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Nov 25, 2022	Dec 13, 2022	KI5YXN · Sean A Linkenheimer · Katy, TX	3	Granted
Aug 22, 2017	Sep 9, 2017	KA5HVO · SCOTT C ENDSLEY · LAWTON, OK	2	Granted
Aug 22, 2017	Sep 9, 2017	KA5HVO · SCOTT C ENDSLEY · LAWTON, OK	2	Dismissed

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for W5URT in the last 24 hours. They show up here within seconds of W5URT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.