N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CST (FCC files through Nov 1, 2026) · next update tomorrow 6:00 am CST

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)

KC9RBX HAM

✅ Available for a vanity request — free since Dec 15, 2021.

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 Dec 15, 2021

Previous holder: Ryan T Kamholtz

Held KC9RBX Dec 14, 2009 → Dec 14, 2019 · first licensed Dec 14, 2009 as KC9RBX · 1 license · FRN 0018346742

KC9RBX Expired Technician Dec 14, 2009 → Dec 14, 2019 (expired)

Licensee
Ryan T Kamholtz

Address
PO Box 14452
Madison, WI 53708

FRN
0018346742

Last granted
Dec 14, 2009

Effective
Aug 25, 2012

Last action
Dec 15, 2021
FCC actions (4)
- Dec 15, 2021 — License expired LIEXP
- Aug 25, 2012 — Administrative update LIAUA
- Dec 14, 2009 — License issued LIISS
- Dec 14, 2009 — 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 Feb 18, 2013 → Nov 1, 2026 · 46 snapshots · as KC9RBX
Ryan T Kamholtz
PO Box 14452
Madison, WI 53708
Seen May 27, 2010 → Jul 26, 2012 · 5 snapshots · as KC9RBX
Ryan T Kamholtz
PO Box 46041
Madison, WI 53744

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KC9RBX in the last 24 hours. They show up here within seconds of KC9RBX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.