N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 2026) · next update today 9:45 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

WP4PWX HAM

✅ Available for a vanity request — free since Nov 28, 2020.

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 · available since Nov 28, 2020

Previous holder: Heriberto Matias Rivera

Held WP4PWX Dec 20, 2017 → Nov 27, 2018 · first licensed Dec 20, 2017 as WP4PWX · 2 licenses · FRN 0027069434

📦 Moved: Coamo, PR → Upper Sandusky, OH

KP4HMR Active Technician · vanity Nov 27, 2018 → expires Nov 27, 2028

Licensee
Heriberto Matias Rivera

Address
420 indian mill Dr apt c
Upper sandusky, OH 43351
40.8516, -83.2714 (street) · Grid EN80iu · CQ 4 · ITU 8 · map ↗

FRN
0027069434

Previous call
WP4PWX

Last granted
Nov 27, 2018

Effective
Sep 30, 2020

Last action
Sep 30, 2020
FCC actions (3)
- Sep 30, 2020 — Administrative update LIAUA
- Nov 27, 2018 — Vanity call sign granted VANGRT
- Nov 27, 2018 — License issued LIISS
WP4PWX Canceled Technician Dec 20, 2017 → Nov 27, 2018 (canceled)

Licensee
Heriberto Matias Rivera

Address
Bo Palmarejo - Sec El Cerro Carr 14 Km R03 Apt 1084
Coamo, PR 00769
18.0966, -66.3583 (ZIP center) · Grid FK68tc · CQ 8 · ITU 11 · map ↗

FRN
0027069434

Last granted
Dec 20, 2017

Effective
Dec 20, 2017

Last action
Nov 27, 2018
FCC actions (3)
- Nov 27, 2018 — License canceled LICAN
- Dec 20, 2017 — License issued LIISS
- Dec 20, 2017 — 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 16, 2022 → Oct 4, 2026 · 13 snapshots · as KP4HMR
Heriberto Matias Rivera
420 indian mill Dr apt c, Upper sandusky, OH 43351
40.8516, -83.2714 (street) · Grid EN80iu · CQ 4 · ITU 8 · map ↗
Seen Jan 2, 2018 → Oct 4, 2026 · 18 snapshots · as WP4PWX
Heriberto Matias Rivera
Bo Palmarejo - Sec El Cerro Carr 14 Km R03 Apt 1084, Coamo, PR 00769
18.0966, -66.3583 (ZIP center) · Grid FK68tc · CQ 8 · ITU 11 · map ↗
Seen Jan 22, 2019 → May 6, 2019 · 2 snapshots · as KP4HMR
Heriberto Matias Rivera
PO Box 1084
Bo Palmarejo - Sec El Cerro Carr 14 Km R03 Apt 1084, Coamo, PR 00769
18.0966, -66.3583 (ZIP center) · Grid FK68tc · CQ 8 · ITU 11 · map ↗

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for WP4PWX in the last 24 hours. They show up here within seconds of WP4PWX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.