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, WIKO4VDU HAM
✅ Available for a vanity request — free since Aug 5, 2025.
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 5, 2025
Previous holder: Amateur Radio Interest Dichotomy
Held KO4VDU Dec 3, 2021 → Aug 4, 2023 · first licensed Dec 3, 2021 as KO4VDU · 3 licenses · FRN 0031668130
-
- Licensee
- Amateur Radio Interest Dichotomy
- Address
- Attn: David R Ross
119 Tulip Way
Carrollton, GA 30116
- FRN
- 0031668130
- Previous call
- WD4HAM
- Trustee
- WW4WWW
- Last granted
- Feb 21, 2024
- Effective
- Feb 21, 2024
- Last action
- Mar 19, 2024
FCC actions (2)
- Feb 21, 2024 — Vanity call sign granted VANGRT
- Feb 21, 2024 — License issued LIISS
-
📦 Moved: Dallas, GA → Carrollton, GA
- Licensee
- Amateur Radio Interest Dichotomy
- Address
- Attn: David R Ross
119 Tulip Way
Carrollton, GA 30116
- FRN
- 0031668130
- Previous call
- KO4VDU
- Trustee
- WW4WWW
- Last granted
- Aug 4, 2023
- Effective
- Aug 22, 2023
- Last action
- Feb 21, 2024
FCC actions (5)
- Feb 21, 2024 — License canceled LICAN
- Aug 22, 2023 — Administrative update LIAUA
- Aug 21, 2023 — Administrative update LIAUA
- Aug 4, 2023 — Vanity call sign granted VANGRT
- Aug 4, 2023 — License issued LIISS
-
- Licensee
- Amateur Radio Interest Dichotomy
- Address
- Attn: David R Ross
1278 Seals Road
Dallas, GA 30157
- FRN
- 0031668130
- Trustee
- WW4WWW
- Last granted
- Dec 3, 2021
- Effective
- Dec 3, 2021
- Last action
- Aug 4, 2023
FCC actions (3)
- Aug 4, 2023 — License canceled LICAN
- Dec 3, 2021 — License issued LIISS
- Dec 3, 2021 — 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 KO4VDU in the last 24 hours. They show up here within seconds of KO4VDU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.