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

KF0LAX HAM

⏳ Not available yet — opens for vanity requests Feb 1, 2027, two years after the license was canceled (Jan 31, 2025).

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

📬 QSL: LoTW user · last upload Oct 28, 2024 · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record

Previous holder: Pieter Post Uiterweer

Held KF0LAX Dec 13, 2022 → Jan 31, 2025 · first licensed Dec 13, 2022 as KF0LAX · 2 licenses · FRN 0032963498

W0PU Active Amateur Extra · vanity Jan 31, 2025 → expires Jan 31, 2035

Licensee
Pieter Post Uiterweer

Address
550 Ore Cart Way
Monument, CO 80132
39.0888, -104.8372 (street) · Grid DM79nc · CQ 4 · ITU 7 · map ↗

FRN
0032963498

Previous call
KF0LAX (General)

Last granted
Jan 31, 2025

Effective
Jul 1, 2025

Last action
Jul 1, 2025
FCC actions (4)
- Jul 1, 2025 — Administrative update LIAUA
- Jul 1, 2025 — Administrative update LIAUA
- Jan 31, 2025 — Vanity call sign granted VANGRT
- Jan 31, 2025 — License issued LIISS
KF0LAX Canceled Amateur Extra Dec 13, 2022 → Jan 31, 2025 (canceled)

Licensee
Pieter Post Uiterweer

Address
PO Box 2211
Monument, CO 80132
39.0866, -104.8583 (ZIP center) · Grid DM79nc · CQ 4 · ITU 7 · map ↗

FRN
0032963498

Last granted
Dec 13, 2022

Effective
Oct 16, 2023

Last action
Jan 31, 2025
FCC actions (7)
- Jan 31, 2025 — License canceled LICAN
- Oct 16, 2023 — License modified LIMOD
- Feb 21, 2023 — License modified LIMOD
- Dec 21, 2022 — Administrative update LIAUA
- Dec 20, 2022 — Administrative update LIAUA
- Dec 13, 2022 — License issued LIISS
- Dec 13, 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 Sep 25, 2025 → Oct 4, 2026 · 3 snapshots · as W0PU
Pieter Post Uiterweer
550 Ore Cart Way, Monument, CO 80132
39.0888, -104.8372 (street) · Grid DM79nc · CQ 4 · ITU 7 · map ↗
Seen Apr 27, 2024 → Oct 4, 2026 · 16 snapshots · as KF0LAX
Pieter Post Uiterweer
PO Box 2211
Monument, CO 80132
39.0866, -104.8583 (ZIP center) · Grid DM79nc · CQ 4 · ITU 7 · map ↗

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KF0LAX in the last 24 hours. They show up here within seconds of KF0LAX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.