N9TPB
FCC License Search
🕒 FCC license data updated today 9:45 am CDT · next update tomorrow 6:00 am CDT
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HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WIWP4SYP HAM
✅ Available for a vanity request — free since Sep 10, 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 · available since Sep 10, 2025
Previous holder: ROBERT RUIZ RIVERA
Held WP4SYP Aug 22, 2023 → Sep 9, 2023 · first licensed Aug 22, 2023 as WP4SYP · 2 licenses · FRN 0034083139
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📦 Moved: San Juan, PR → Cayey, PR
- Licensee
- ROBERT RUIZ RIVERA
- Address
- PO BOX 370104
CAYEY, PR 00737
- FRN
- 0034083139
- Previous call
- WP4SYP (Technician)
- Last granted
- Sep 9, 2023
- Effective
- Apr 29, 2025
- Last action
- Apr 29, 2025
FCC actions (5)
- Apr 29, 2025 — Administrative update LIAUA
- Apr 25, 2025 — Administrative update LIAUA
- Jul 15, 2024 — License modified LIMOD
- Sep 9, 2023 — Vanity call sign granted VANGRT
- Sep 9, 2023 — License issued LIISS
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- Licensee
- ROBERT RUIZ RIVERA
- Address
- PO BOX 20021
SAN JUAN, PR 00928
- FRN
- 0034083139
- Last granted
- Aug 22, 2023
- Effective
- Aug 22, 2023
- Last action
- Sep 9, 2023
FCC actions (3)
- Sep 9, 2023 — License canceled LICAN
- Aug 22, 2023 — License issued LIISS
- Aug 22, 2023 — 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 May 29, 2025 → Oct 4, 2026 · 4 snapshots · as KP4RRR
ROBERT RUIZ RIVERA
PO BOX 370104, CAYEY, PR 00737 - Seen Apr 27, 2024 → Oct 4, 2026 · 14 snapshots · as WP4SYP
ROBERT RUIZ RIVERA
PO BOX 20021, SAN JUAN, PR 00928 - Seen Sep 27, 2024 → Apr 25, 2025 · 6 snapshots · as KP4RRR
ROBERTO RUIZ-RIVERA
PO BOX 20021, SAN JUAN, PR 00928
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for WP4SYP in the last 24 hours. They show up here within seconds of WP4SYP beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.