N9TPB FCC License Search
🕒 FCC license data updated today 8:30 am CDT (FCC files through Oct 1, 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

K4SDT HAM

⏳ Not available yet — opens for vanity requests Nov 14, 2026, two years after the license was canceled (Nov 13, 2024).
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.

📬 QSL: LoTW user · last upload Nov 13, 2024 · eQSL AG member · QRZ · HamQTH

Not currently held · 2 holders on record

Previous holder: JOHN D JONES

Held K4SDT May 18, 2021 → Nov 13, 2024 · first licensed Apr 23, 2021 as KO4PTS · 3 licenses · FRN 0030723076

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

Previous holder: James H Spoone

Held K4SDT Nov 10, 2004 → Aug 22, 2017 · first licensed Nov 10, 2004 as K4SDT · 1 license · FRN 0012113296

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

Others requesting K4SDT

1 application listed K4SDT as a choice, newest first.

FiledAwardApplicantChoice #Status
Apr 28, 2021 May 16, 2021 KO4PTS · John D Jones · Johnson City, TN 1Granted

📡 On the air: APRS, digital & WSPR spots

No APRS positions, PSK Reporter reports or WSPR spots for K4SDT in the last 24 hours. They show up here within seconds of K4SDT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.