N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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, WIKK6ZSB HAM
✅ Available for a vanity request — free since Feb 9, 2018.
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 Feb 9, 2018
Previous holder: Heindrick Yu
Held KK6ZSB Jan 5, 2016 → Feb 8, 2016 · first licensed Jan 5, 2016 as KK6ZSB · 3 licenses · FRN 0025176744
-
- Licensee
- Heindrick Yu
- Address
- PO Box 50104
Irvine, CA 92619
- FRN
- 0025176744
- Previous call
- AI6NP (General)
- Last granted
- Feb 10, 2026
- Effective
- Feb 10, 2026
- Last action
- Feb 10, 2026
FCC actions (4)
- Feb 10, 2026 — License renewed LIREN
- Aug 7, 2025 — Administrative update LIAUA
- Feb 26, 2016 — Vanity call sign granted VANGRT
- Feb 26, 2016 — License issued LIISS
-
- Licensee
- Heindrick Yu
- Address
- PO Box 50104
Irvine, CA 92619
- FRN
- 0025176744
- Previous call
- KK6ZSB (General)
- Last granted
- Jan 5, 2016
- Effective
- Feb 8, 2016
- Last action
- Feb 26, 2016
FCC actions (3)
- Feb 26, 2016 — License canceled LICAN
- Feb 8, 2016 — Systematic call sign granted SYSGRT
- Feb 8, 2016 — License issued LIISS
-
- Licensee
- Heindrick Yu
- Address
- PO Box 50104
Irvine, CA 92619
- FRN
- 0025176744
- Last granted
- Jan 5, 2016
- Effective
- Feb 8, 2016
- Last action
- Feb 8, 2016
FCC actions (6)
- Feb 8, 2016 — License canceled LICAN
- Jan 16, 2016 — Administrative update LIAUA
- Jan 15, 2016 — License modified LIMOD
- Jan 12, 2016 — Administrative update LIAUA
- Jan 5, 2016 — License issued LIISS
- Jan 5, 2016 — Systematic call sign granted SYSGRT
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KK6ZSB in the last 24 hours. They show up here within seconds of KK6ZSB beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.