N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 14, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)

KB3UMZ HAM

✅ Available for a vanity request — free since Apr 12, 2019.

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 Apr 12, 2019

Previous holder: Matthew J Vanderhoff

Held KB3UMZ May 13, 2010 → Apr 11, 2017 · first licensed May 13, 2010 as KB3UMZ · 2 licenses · FRN 0019836014

N3VAN Active General · vanity Apr 11, 2017 → expires Apr 11, 2027

Licensee
Matthew J Vanderhoff

Address
5441 Route 309
Center Valley, PA 18034
40.5349, -75.4069 (street) · Grid FN20hm · CQ 5 · ITU 8 · map ↗

FRN
0019836014

Previous call
KB3UMZ (Technician)

Last granted
Apr 11, 2017

Effective
Oct 29, 2018

Last action
Oct 29, 2018
FCC actions (3)
- Oct 29, 2018 — License modified LIMOD
- Apr 11, 2017 — Vanity call sign granted VANGRT
- Apr 11, 2017 — License issued LIISS
KB3UMZ Canceled Technician May 13, 2010 → Apr 11, 2017 (canceled)

Licensee
Matthew J Vanderhoff

Address
5441 Route 309
Center Valley, PA 18034
40.5349, -75.4069 (street) · Grid FN20hm · CQ 5 · ITU 8 · map ↗

FRN
0019836014

Last granted
May 13, 2010

Effective
Jun 21, 2014

Last action
Apr 11, 2017
FCC actions (4)
- Apr 11, 2017 — License canceled LICAN
- Jun 21, 2014 — Administrative update LIAUA
- May 13, 2010 — License issued LIISS
- May 13, 2010 — 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 Mar 28, 2015 → Oct 11, 2026 · 59 snapshots · as KB3UMZ
Matthew J Vanderhoff
5441 Route 309, Center Valley, PA 18034
40.5349, -75.4069 (street) · Grid FN20hm · CQ 5 · ITU 8 · map ↗
Seen May 27, 2010 → May 22, 2014 · 11 snapshots · as KB3UMZ
Matthew J Vanderhoff
1334 N 14th St Apt U24, Whitehall, PA 18052
40.6574, -75.5043 (ZIP center) · Grid FN20fp · CQ 5 · ITU 8 · map ↗

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KB3UMZ in the last 24 hours. They show up here within seconds of KB3UMZ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.