N9TPB
FCC License Search
🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 2, 2026) · next update today 9:45 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, WIW4DIO HAM
✅ Available for a vanity request — free since Dec 2, 2022.
1x3 call: Technician, General, Advanced and Amateur Extra licensees 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 Dec 2, 2022
Previous holder: William F Kniss
Held W4DIO Jul 3, 2020 → Dec 1, 2020 · first licensed May 19, 2020 as KO4DOC · 3 licenses · FRN 0025055096
-
- Licensee
- William F Kniss
- Address
- Attn: William F Kniss
PO Box 37098
5040 Highway 100
Lyles, TN 37098-1873
- FRN
- 0025055096
- Previous call
- W4DIO
- Last granted
- Dec 1, 2020
- Effective
- Sep 1, 2026
- Last action
- Sep 1, 2026
FCC actions (4)
- Sep 1, 2026 — Administrative update LIAUA
- Oct 22, 2024 — Administrative update LIAUA
- Dec 1, 2020 — Vanity call sign granted VANGRT
- Dec 1, 2020 — License issued LIISS
-
- Licensee
- William F Kniss
- Address
- Attn: William F Kniss
5040 Hwy 100
Lyles, TN 37098-1873
- FRN
- 0025055096
- Previous call
- KO4DOC
- Last granted
- Jul 3, 2020
- Effective
- Jul 3, 2020
- Last action
- Dec 1, 2020
FCC actions (3)
- Dec 1, 2020 — License canceled LICAN
- Jul 3, 2020 — Vanity call sign granted VANGRT
- Jul 3, 2020 — License issued LIISS
-
- Licensee
- William F Kniss
- Address
- 5040 Hwy 100
Lyles, TN 37098-1873
- FRN
- 0025055096
- Last granted
- May 19, 2020
- Effective
- May 19, 2020
- Last action
- Jul 3, 2020
FCC actions (3)
- Jul 3, 2020 — License canceled LICAN
- May 19, 2020 — License issued LIISS
- May 19, 2020 — Systematic call sign granted SYSGRT
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Sep 27, 2026 · 1 snapshot · as K2LXA
William F Kniss
Attn: William F Kniss
PO Box 37098
5040 Highway 100, Lyles, TN 37098-1873 - Seen Apr 16, 2022 → Sep 27, 2026 · 28 snapshots · as KO4DOC
William F Kniss
5040 Hwy 100, Lyles, TN 37098-1873 - Seen Nov 28, 2024 → Sep 25, 2025 · 7 snapshots · as K2LXA
William F Kniss
Attn: William F Kniss
PO Box 603, Lyles, TN 37098-1873
Others requesting W4DIO
4 applications listed W4DIO as a choice, newest first.
| Filed | Award | Applicant | Choice # | Status |
|---|---|---|---|---|
| Aug 22, 2023 | Sep 9, 2023 | KQ4KRI · Sharon M Martin · EVANS, GA | 2 | Granted |
| Jun 15, 2020 | Jul 3, 2020 | KO4DOC · William F Kniss · Lyles, TN | 1 | Granted |
| Jan 23, 2020 | Feb 10, 2020 | KO4AVN · HUNTER A BARNELL · MONTICELLO, GA | 4 | Granted |
| Oct 17, 2003 | Nov 4, 2003 | KE4HTJ · JOHN C VAUGHAN · Valdosta, GA | 8 | Granted |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for W4DIO in the last 24 hours. They show up here within seconds of W4DIO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.