N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 5, 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, WIWB9STU HAM
✅ Available for a vanity request — free since Aug 27, 2010.
2x3 call: any licensee can request it.
No pending applications list it.
Last requested Jul 1, 2004 as choice 1: granted.
Last requested Jul 1, 2004 as choice 1: granted.
📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH
Not currently held · 1 holder on record · available since Aug 27, 2010
Previous holder: Kenneth R Mahnke
Held WB9STU Jul 20, 2004 → Aug 26, 2008 · first licensed Oct 23, 2001 as KD6DHL · 4 licenses · FRN 0005295241
-
📦 Moved: San Antonio, TX → Seguin, TX
- Licensee
- Kenneth R Mahnke
- Address
- Attn: Kenneth R. Mahnke
2146 Mill Valley
Seguin, TX 78155
- FRN
- 0005295241
- Previous call
- W5KRM (Technician)
- Last granted
- Jun 13, 2025
- Effective
- Jun 13, 2025
- Last action
- Jun 13, 2025
FCC actions (6)
- Jun 13, 2025 — License renewed LIREN
- Mar 25, 2021 — Administrative update LIAUA
- May 2, 2017 — Administrative update LIAUA
- Jun 24, 2016 — Administrative update LIAUA
- Jul 17, 2015 — Vanity call sign granted VANGRT
- Jul 17, 2015 — License issued LIISS
-
- Licensee
- Kenneth R Mahnke
- Address
- 128 Inslee Ave
San Antonio, TX 78255
- FRN
- 0005295241
- Previous call
- WB9STU (Technician)
- Last granted
- Aug 26, 2008
- Effective
- Jun 13, 2015
- Last action
- Jul 17, 2015
FCC actions (4)
- Jul 17, 2015 — License canceled LICAN
- Jun 13, 2015 — Administrative update LIAUA
- Aug 26, 2008 — Vanity call sign granted VANGRT
- Aug 26, 2008 — License issued LIISS
-
- Licensee
- Kenneth R Mahnke
- Address
- 8418 Grapevine Pass
San Antonio, TX 78255
- FRN
- 0005295241
- Previous call
- KD6DHL (Technician)
- Last granted
- Jul 20, 2004
- Effective
- Aug 7, 2008
- Last action
- Aug 26, 2008
FCC actions (4)
- Aug 26, 2008 — License canceled LICAN
- Aug 7, 2008 — Administrative update LIAUA
- Jul 20, 2004 — Vanity call sign granted VANGRT
- Jul 20, 2004 — License issued LIISS
-
- Licensee
- Kenneth R Mahnke
- Address
- 11518 Whisper Moss
San Antonio, TX 78230
- FRN
- 0005295241
- Last granted
- Oct 23, 2001
- Effective
- Jun 24, 2004
- Last action
- Jul 20, 2004
FCC actions (3)
- Jul 20, 2004 — License canceled LICAN
- Jun 24, 2004 — License modified LIMOD
- Oct 23, 2001 — License renewed LIREN
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Apr 16, 2022 → Oct 4, 2026 · 13 snapshots · as N0SGH
Kenneth R Mahnke
Attn: Kenneth R. Mahnke
2146 Mill Valley, Seguin, TX 78155 - Seen Aug 2, 2015 → Oct 4, 2026 · 33 snapshots · as W5KRM
Kenneth R Mahnke
128 Inslee Ave, San Antonio, TX 78255 - Seen May 27, 2010 → Oct 4, 2026 · 61 snapshots · as WB9STU
Kenneth R Mahnke
8418 Grapevine Pass, San Antonio, TX 78255 - Seen Nov 7, 2004 → Oct 4, 2026 · 49 snapshots · as KD6DHL
Kenneth R Mahnke
11518 Whisper Moss, San Antonio, TX 78230 - Seen May 12, 2017 → May 6, 2019 · 8 snapshots · as N0SGH
Kenneth R Mahnke
Attn: Kenneth R. Mahnke
3064 Coral Sky, Seguin, TX 78155 - Seen Jun 30, 2016 → Feb 15, 2017 · 5 snapshots · as N0SGH
Kenneth R Mahnke
Attn: Kenneth R. Mahnke
5156 Eagle Valley Street, Cibolo, TX 78108 - Seen Aug 2, 2015 → Mar 16, 2016 · 7 snapshots · as N0SGH
Kenneth R Mahnke
Attn: Kenneth R. Mahnke
128 Inslee Ave, San Antonio, TX 78209
Others requesting WB9STU
1 application listed WB9STU as a choice, newest first.
| Filed | Award | Applicant | Choice # | WB9STU | Result |
|---|---|---|---|---|---|
| Jul 1, 2004 | Jul 19, 2004 | KD6DHL · Kenneth R Mahnke · San Antonio, TX | 1 | Granted | Granted this call |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for WB9STU in the last 24 hours. They show up here within seconds of WB9STU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.