N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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, WIKM6QOQ HAM
✅ Available for a vanity request — free since Mar 14, 2020.
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 Mar 14, 2020
Previous holder: Maia H Xiao
Held KM6QOQ Feb 22, 2018 → Mar 13, 2018 · first licensed Feb 22, 2018 as KM6QOQ · 7 licenses · FRN 0027241439
-
📦 Moved: Seattle, WA → Randolph Ctr., VT
- Licensee
- Maia H Xiao
- Address
- PO Box 27
Randolph Ctr., VT 05061-0027
- FRN
- 0027241439
- Previous call
- NY7H (General)
- Last granted
- Apr 14, 2020
- Effective
- Apr 28, 2026
- Last action
- Apr 28, 2026
FCC actions (21)
- Apr 28, 2026 — Administrative update LIAUA
- Sep 2, 2023 — Administrative update LIAUA
- May 12, 2023 — Administrative update LIAUA
- Oct 25, 2022 — Administrative update LIAUA
- Jul 16, 2022 — Administrative update LIAUA
- Apr 21, 2022 — Administrative update LIAUA
- Apr 12, 2022 — Administrative update LIAUA
- Nov 18, 2021 — Administrative update LIAUA
- Jul 15, 2021 — Administrative update LIAUA
- May 27, 2021 — Administrative update LIAUA
- May 26, 2021 — Administrative update LIAUA
- Mar 16, 2021 — Administrative update LIAUA
- Feb 5, 2021 — Administrative update LIAUA
- Oct 23, 2020 — Administrative update LIAUA
- Oct 21, 2020 — Administrative update LIAUA
- Sep 4, 2020 — Administrative update LIAUA
- Aug 5, 2020 — Administrative update LIAUA
- Aug 4, 2020 — Administrative update LIAUA
- Jul 30, 2020 — Administrative update LIAUA
- Apr 14, 2020 — Vanity call sign granted VANGRT
- Apr 14, 2020 — License issued LIISS
-
- Licensee
- Tianhao Xiao
- Address
- 117 E Louisa St # 261
Seattle, WA 98102-3203
- FRN
- 0027241439
- Previous call
- W6ZU (General)
- Last granted
- Jun 18, 2019
- Effective
- Nov 8, 2019
- Last action
- Apr 14, 2020
FCC actions (8)
- Apr 14, 2020 — License canceled LICAN
- Nov 8, 2019 — Administrative update LIAUA
- Oct 8, 2019 — Administrative update LIAUA
- Sep 4, 2019 — Administrative update LIAUA
- Aug 13, 2019 — Administrative update LIAUA
- Aug 6, 2019 — Administrative update LIAUA
- Jun 18, 2019 — Vanity call sign granted VANGRT
- Jun 18, 2019 — License issued LIISS
-
- Licensee
- Tianhao Xiao
- Address
- PO Box 45245
Seattle, WA 98145-3012
- FRN
- 0027241439
- Previous call
- NY7H (General)
- Last granted
- Feb 1, 2019
- Effective
- Feb 1, 2019
- Last action
- Jun 18, 2019
FCC actions (3)
- Jun 18, 2019 — License canceled LICAN
- Feb 1, 2019 — Vanity call sign granted VANGRT
- Feb 1, 2019 — License issued LIISS
-
- Licensee
- Tianhao Xiao
- Address
- PO Box 45245
Seattle, WA 98145-3012
- FRN
- 0027241439
- Previous call
- WQ6B (General)
- Last granted
- Aug 24, 2018
- Effective
- Nov 16, 2018
- Last action
- Feb 1, 2019
FCC actions (5)
- Feb 1, 2019 — License canceled LICAN
- Nov 16, 2018 — Administrative update LIAUA
- Sep 26, 2018 — Administrative update LIAUA
- Aug 24, 2018 — Vanity call sign granted VANGRT
- Aug 24, 2018 — License issued LIISS
-
📦 Moved: Fremont, CA → Seattle, WA
- Licensee
- Tianhao Xiao
- Address
- 7511 Greenwood Ave N, Unit 106
Seattle, WA 98103-4627
- FRN
- 0027241439
- Previous call
- AJ6BV (General)
- Last granted
- Apr 10, 2018
- Effective
- Jul 10, 2018
- Last action
- Aug 24, 2018
FCC actions (5)
- Aug 24, 2018 — License canceled LICAN
- Jul 10, 2018 — Administrative update LIAUA
- Jul 6, 2018 — Administrative update LIAUA
- Apr 10, 2018 — Vanity call sign granted VANGRT
- Apr 10, 2018 — License issued LIISS
-
- Licensee
- Tianhao Xiao
- Address
- PO Box 3559
Fremont, CA 94539-0355
- FRN
- 0027241439
- Previous call
- KM6QOQ (General)
- Last granted
- Feb 22, 2018
- Effective
- Mar 13, 2018
- Last action
- Apr 10, 2018
FCC actions (3)
- Apr 10, 2018 — License canceled LICAN
- Mar 13, 2018 — Systematic call sign granted SYSGRT
- Mar 13, 2018 — License issued LIISS
-
- Licensee
- Tianhao Xiao
- Address
- PO Box 3559
Fremont, CA 94539-0355
- FRN
- 0027241439
- Last granted
- Feb 22, 2018
- Effective
- Mar 12, 2018
- Last action
- Mar 13, 2018
FCC actions (7)
- Mar 13, 2018 — License canceled LICAN
- Mar 12, 2018 — Administrative update LIAUA
- Mar 12, 2018 — License modified LIMOD
- Mar 6, 2018 — License modified LIMOD
- Feb 23, 2018 — Administrative update LIAUA
- Feb 22, 2018 — License issued LIISS
- Feb 22, 2018 — 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 N7XI
Maia H Xiao
PO Box 27
Randolph Ctr., VT 05061-0027 - Seen Apr 16, 2022 → Oct 4, 2026 · 13 snapshots · as NY7H
Tianhao Xiao
117 E Louisa St # 261, Seattle, WA 98102-3203 - Seen Jan 22, 2019 → Oct 4, 2026 · 29 snapshots · as NY7H
Tianhao Xiao
PO Box 45245
Seattle, WA 98145-3012 - Seen Sep 3, 2018 → Oct 4, 2026 · 17 snapshots · as WQ6B
Tianhao Xiao
7511 Greenwood Ave N, Unit 106, Seattle, WA 98103-4627 - Seen May 7, 2018 → Oct 4, 2026 · 35 snapshots · as KM6QOQ
Tianhao Xiao
PO Box 3559
Fremont, CA 94539-0355 - Seen Apr 27, 2024 → Sep 25, 2025 · 10 snapshots · as N7XI
Maia H Xiao
1211 E. Denny Way, Hangar 192, Seattle, WA 98122-2516 - Seen Apr 16, 2022 · 1 snapshot · as N7XI
Howard T Xiao
Paul G. Allen Center AC101, Campus Box 352350, Seattle, WA 98195-2350
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KM6QOQ in the last 24 hours. They show up here within seconds of KM6QOQ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.