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

KB1KLX HAM

✅ Available for a vanity request — free since Sep 14, 2013.

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 14, 2013

Previous holder: THOMAS D SANFILIPPO

Held KB1KLX Nov 13, 2003 → Sep 13, 2011 · first licensed Nov 13, 2003 as KB1KLX · 2 licenses · FRN 0009843061

W1ZH Active Amateur Extra · vanity Sep 13, 2011 → expires Sep 13, 2031

Licensee
THOMAS D SANFILIPPO

Address
147 AMORY ST APT 1
CAMBRIDGE, MA 02139
42.3722, -71.1003 (street) · Grid FN42ki · CQ 5 · ITU 8 · map ↗

FRN
0009843061

Previous call
KB1KLX (General)

Last granted
Jul 17, 2021

Effective
Jul 17, 2021

Last action
Jul 17, 2021
FCC actions (3)
- Jul 17, 2021 — License renewed LIREN
- Sep 13, 2011 — Vanity call sign granted VANGRT
- Sep 13, 2011 — License issued LIISS
KB1KLX Canceled Amateur Extra Nov 13, 2003 → Sep 13, 2011 (canceled)

Licensee
THOMAS D SANFILIPPO

Address
147 AMORY ST APT 1
CAMBRIDGE, MA 02139
42.3722, -71.1003 (street) · Grid FN42ki · CQ 5 · ITU 8 · map ↗

FRN
0009843061

Last granted
Nov 13, 2003

Effective
Aug 15, 2011

Last action
Sep 13, 2011
FCC actions (6)
- Sep 13, 2011 — License canceled LICAN
- Aug 15, 2011 — License modified LIMOD
- Aug 2, 2011 — Administrative update LIAUA
- Jul 23, 2010 — Administrative update LIAUA
- Feb 9, 2004 — License modified LIMOD
- Nov 13, 2003 — License issued LIISS

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Oct 17, 2011 → Oct 4, 2026 · 92 snapshots · as KB1KLX
THOMAS D SANFILIPPO
147 AMORY ST APT 1, CAMBRIDGE, MA 02139
42.3722, -71.1003 (street) · Grid FN42ki · CQ 5 · ITU 8 · map ↗
Seen Nov 7, 2004 → May 27, 2010 · 2 snapshots · as KB1KLX
THOMAS D SANFILIPPO
10 SUMNER RD APT 9, CAMBRIDGE, MA 02138
42.3796, -71.1352 (ZIP center) · Grid FN42kj · CQ 5 · ITU 8 · map ↗

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for KB1KLX in the last 24 hours. They show up here within seconds of KB1KLX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.