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

KM4ZYX HAM

⏳ Not available yet — opens for vanity requests Sep 27, 2027, two years after the license was canceled (Sep 26, 2025).

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

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record

Previous holder: William T Burroughs

Held KM4ZYX Dec 30, 2016 → Sep 26, 2025 · first licensed Dec 30, 2016 as KM4ZYX · 2 licenses · FRN 0023721202

N0CPR Active Technician · vanity Sep 26, 2025 → expires Sep 26, 2035

Licensee
William T Burroughs

Address
4049 S Himalaya Circle
Aurora, CO 80013
39.6430, -104.7522 (street) · Grid DM79op · CQ 4 · ITU 7 · map ↗

FRN
0023721202

Previous call
KM4ZYX

Last granted
Sep 26, 2025

Effective
Sep 26, 2025

Last action
Sep 26, 2025
FCC actions (2)
- Sep 26, 2025 — Vanity call sign granted VANGRT
- Sep 26, 2025 — License issued LIISS
KM4ZYX Canceled Technician Dec 30, 2016 → Sep 26, 2025 (canceled)

Licensee
William T Burroughs

Address
4049 S Himalaya Circle
Aurora, CO 80013
39.6430, -104.7522 (street) · Grid DM79op · CQ 4 · ITU 7 · map ↗

FRN
0023721202

Last granted
Dec 30, 2016

Effective
Nov 30, 2024

Last action
Sep 26, 2025
FCC actions (5)
- Sep 26, 2025 — License canceled LICAN
- Nov 30, 2024 — Administrative update LIAUA
- Mar 8, 2023 — Administrative update LIAUA
- Dec 30, 2016 — License issued LIISS
- Dec 30, 2016 — 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 Dec 20, 2024 → Oct 4, 2026 · 10 snapshots · as KM4ZYX
William T Burroughs
4049 S Himalaya Circle, Aurora, CO 80013
39.6430, -104.7522 (street) · Grid DM79op · CQ 4 · ITU 7 · map ↗
Seen Apr 27, 2024 → Nov 28, 2024 · 4 snapshots · as KM4ZYX
William T Burroughs
4400 E Mississippi Ave Apt 105, Denver, CO 80246
39.7052, -104.9307 (ZIP center) · Grid DM79mq · CQ 4 · ITU 7 · map ↗
Seen Feb 15, 2017 → Apr 16, 2022 · 10 snapshots · as KM4ZYX
William T Burroughs
193 Heritage Pkwy, Bluffton, SC 29910
32.2178, -80.8950 (ZIP center) · Grid EM92nf · CQ 5 · ITU 8 · map ↗

Others requesting KM4ZYX

1 application listed KM4ZYX as a choice, newest first.

Filed	Award	Applicant	Choice #	Status
Oct 6, 2020	Oct 24, 2020	KO4ICQ · Clark Whitaker · Hoover, AL	7	Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KM4ZYX in the last 24 hours. They show up here within seconds of KM4ZYX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.