N9TPB
FCC License Search
🕒 FCC license data updated yesterday 8:30 am CDT (FCC files through Oct 1, 2026) · next update today 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, WIWP4LTH HAM
✅ Available for a vanity request — free since May 13, 2001.
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 May 13, 2001
Previous holder: DAVID RIVERA DIAZ
Held WP4LTH → May 12, 1999 · first licensed as WP4LTH · 2 licenses · FRN 0018858688
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📦 Moved: , None → Naguabo, PR
- Licensee
- DAVID RIVERA DIAZ
- Address
- HC 1 BOX 4881-12
NAGUABO, PR 00718
- FRN
- 0018858688
- Previous call
- WP4LTH (Technician Plus)
- Last granted
- Jun 17, 2009
- Effective
- Jun 17, 2009
- Last action
- Jun 18, 2021
FCC actions (4)
- Jun 18, 2021 — License expired LIEXP
- Jun 17, 2009 — License renewed LIREN
- Jun 16, 2009 — FCC action ESCFRN
- Jan 16, 2009 — Authorization printed AUTHPR
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- Licensee
- DAVID RIVERA DIAZ
- Address
- Last granted
- Effective
- Last action
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for WP4LTH in the last 24 hours. They show up here within seconds of WP4LTH beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.