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
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HAMs within 5 miles of N9TPB · Extra class operators in Madison, WI · or try N9TPB · K9* wildcards · Smith, John · 0004797601 (FRN) · 53703 · Madison, WIKO4SQT HAM
✅ Available for a vanity request — free since Sep 5, 2023.
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 Sep 5, 2023
Previous holder: Robert T Schroder
Held KO4SQT Aug 17, 2021 → Sep 4, 2021 · first licensed Aug 17, 2021 as KO4SQT · 3 licenses · FRN 0029019163
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📦 Moved: New Haven, CT → Upper Falls, MD
- Licensee
- Robert T Schroder
- Address
- PO Box 121
UPPER FALLS, MD 21156-0121
- FRN
- 0029019163
- Previous call
- N2RTS (General)
- Last granted
- May 13, 2023
- Effective
- Jan 3, 2026
- Last action
- Jan 3, 2026
FCC actions (4)
- Jan 3, 2026 — Administrative update LIAUA
- May 8, 2025 — Administrative update LIAUA
- May 13, 2023 — Vanity call sign granted VANGRT
- May 13, 2023 — License issued LIISS
-
📦 Moved: Clifton, VA → New Haven, CT
- Licensee
- Robert T Schroder
- Address
- PO Box 201266
NEW HAVEN, CT 06520-1266
- FRN
- 0029019163
- Previous call
- KO4SQT (General)
- Last granted
- Sep 4, 2021
- Effective
- Mar 22, 2022
- Last action
- May 13, 2023
FCC actions (6)
- May 13, 2023 — License canceled LICAN
- Mar 22, 2022 — License modified LIMOD
- Jan 4, 2022 — License modified LIMOD
- Sep 18, 2021 — Administrative update LIAUA
- Sep 4, 2021 — Vanity call sign granted VANGRT
- Sep 4, 2021 — License issued LIISS
-
- Licensee
- Robert T Schroder
- Address
- 6446 ROCK HOLLOW LN
CLIFTON, VA 20124-2473
- FRN
- 0029019163
- Last granted
- Aug 17, 2021
- Effective
- Aug 17, 2021
- Last action
- Sep 4, 2021
FCC actions (3)
- Sep 4, 2021 — License canceled LICAN
- Aug 17, 2021 — License issued LIISS
- Aug 17, 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.
- Seen Sep 27, 2026 → Oct 4, 2026 · 2 snapshots · as NT1S
Robert T Schroder
PO Box 121
UPPER FALLS, MD 21156-0121 - Seen Apr 16, 2022 → Oct 4, 2026 · 21 snapshots · as N2RTS
Robert T Schroder
PO Box 201266
NEW HAVEN, CT 06520-1266 - Seen Apr 16, 2022 → Oct 4, 2026 · 13 snapshots · as KO4SQT
Robert T Schroder
6446 ROCK HOLLOW LN, CLIFTON, VA 20124-2473 - Seen May 29, 2025 → Sep 25, 2025 · 2 snapshots · as NT1S
Robert T Schroder
PO Box 185
CENTREVILLE, VA 20122-0185
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KO4SQT in the last 24 hours. They show up here within seconds of KO4SQT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.