N9TPB FCC License Search

🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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

KM4AVS

✅ Available for a vanity request — free since Jul 23, 2016.

2x3 call: any licensee can request it. No pending applications list it.

Not currently held · 1 holder on record · available since Jul 23, 2016

Previous holder: Maximillian S Von Luedinghausen

Held KM4AVS May 1, 2014 → Jul 22, 2014 · first licensed May 1, 2014 as KM4AVS · 2 licenses · FRN 0023524325

📦 Moved: Saint Petersburg, FL → Torrance, CA

WU0N Active Amateur Extra · vanity Jul 22, 2014 → expires Jul 22, 2034

Licensee
Maximillian S Von Luedinghausen

Address
444 Alaska Avenue, Suite #R7843
Torrance, CA 90503
33.8427, -118.3333 (street) · Grid DM03uu · CQ 3 · ITU 6 · map ↗

FRN
0023524325

Previous call
KM4AVS (General)

Last granted
Jun 5, 2024

Effective
Jun 5, 2024

Last action
Jun 5, 2024
FCC actions (5)
- Jun 5, 2024 — License renewed LIREN
- Sep 28, 2018 — FCC action LIAUA
- Sep 10, 2014 — FCC action LIAUA
- Jul 22, 2014 — Vanity call sign granted VANGRT
- Jul 22, 2014 — License issued LIISS
KM4AVS Canceled Amateur Extra May 1, 2014 → Jul 22, 2014 (canceled)

Licensee
Maximillian S Von Luedinghausen

Address
1001 Roosevelt Blvd Ste 1000 225876
Saint Petersburg, FL 33716
27.8799, -82.6528 (ZIP center) · Grid EL87qv · CQ 5 · ITU 8 · map ↗

FRN
0023524325

Last granted
May 1, 2014

Effective
Jul 1, 2014

Last action
Jul 22, 2014
FCC actions (4)
- Jul 22, 2014 — License canceled LICAN
- Jul 1, 2014 — License modified LIMOD
- May 1, 2014 — License issued LIISS
- May 1, 2014 — 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 Jul 1, 2024 → Sep 27, 2026 · 10 snapshots · as WU0N
Maximillian S Von Luedinghausen
444 Alaska Avenue, Suite #R7843, Torrance, CA 90503
33.8427, -118.3333 (street) · Grid DM03uu · CQ 3 · ITU 6 · map ↗
Seen May 22, 2014 → Sep 27, 2026 · 36 snapshots · as KM4AVS
Maximillian S Von Luedinghausen
1001 Roosevelt Blvd Ste 1000 225876, Saint Petersburg, FL 33716
27.8799, -82.6528 (ZIP center) · Grid EL87qv · CQ 5 · ITU 8 · map ↗
Seen Jan 22, 2019 → Apr 27, 2024 · 4 snapshots · as WU0N
Maximillian S Von Luedinghausen
3501 Jack Northrop Ave, Suite #R7843, Hawthorne, CA 90250
33.9137, -118.3509 (ZIP center) · Grid DM03tv · CQ 3 · ITU 6 · map ↗
Seen Mar 28, 2015 → Sep 3, 2018 · 21 snapshots · as WU0N
Maximillian S Von Luedinghausen
2220 Meridian Blvd, Suite # R7843, Minden, NV 89423
38.9971, -119.7353 (ZIP center) · Grid DM08dx · CQ 3 · ITU 6 · map ↗