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)

KF4YST HAM

✅ Available for a vanity request — free since Aug 18, 2000.

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 Aug 18, 2000

Previous holder: SIDNEY J WILLIAMS

Held KF4YST → Aug 17, 1998 · first licensed as KF4YST · 1 license · no FRN on file (pre-2001 records)

KF4YST Canceled Technician → Aug 17, 1998 (canceled)

Licensee
SIDNEY J WILLIAMS

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.

Seen Nov 7, 2004 → Oct 11, 2026 · 49 snapshots · as KF4YST
SIDNEY J WILLIAMS

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for KF4YST in the last 24 hours. They show up here within seconds of KF4YST beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.