N9TPB
FCC License Search
🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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, WIKB0SDT HAM
✅ Available for a vanity request — free since Feb 7, 2000.
2x3 call: any licensee can request it.
No pending applications list it.
Not currently held · 1 holder on record · available since Feb 7, 2000
Previous holder: RINDERKNECHT, PHILIP J
Held KB0SDT → Feb 6, 1998 · first licensed as KB0SDT · 1 license · no FRN on file (pre-2001 records)
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- Licensee
- RINDERKNECHT, PHILIP J
- 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 → Sep 27, 2026 · 47 snapshots · as KB0SDT
RINDERKNECHT, PHILIP J
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KB0SDT in the last 24 hours. They show up here within seconds of KB0SDT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.