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, WIKD0GXV HAM
✅ Available for a vanity request — free since Apr 11, 2011.
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 Apr 11, 2011
Previous holder: Brian P Markham
Held KD0GXV Mar 17, 2009 → Apr 10, 2009 · first licensed Mar 17, 2009 as KD0GXV · 3 licenses · FRN 0018576702
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📦 Moved: Columbia, MD → Livingston, TX
- Licensee
- Brian P Markham
- Address
- 101 Rainbow Dr # 16945
Livingston, TX 77399
- FRN
- 0018576702
- Previous call
- N4GSX (Technician)
- Last granted
- Jan 6, 2024
- Effective
- Sep 12, 2025
- Last action
- Sep 12, 2025
FCC actions (8)
- Sep 12, 2025 — Administrative update LIAUA
- Apr 30, 2025 — Administrative update LIAUA
- Apr 29, 2025 — Administrative update LIAUA
- Jan 6, 2024 — License renewed LIREN
- Aug 3, 2017 — Administrative update LIAUA
- May 5, 2015 — Administrative update LIAUA
- Apr 4, 2014 — Vanity call sign granted VANGRT
- Apr 4, 2014 — License issued LIISS
-
📦 Moved: Aurora, CO → Columbia, MD
- Licensee
- Brian P Markham
- Address
- 12050 Little Patuxent Pkwy Apt E
Columbia, MD 21044
- FRN
- 0018576702
- Previous call
- KD0GXV (Technician)
- Last granted
- Apr 10, 2009
- Effective
- Jun 10, 2013
- Last action
- Apr 4, 2014
FCC actions (6)
- Apr 4, 2014 — License canceled LICAN
- Jun 10, 2013 — License modified LIMOD
- May 19, 2012 — Administrative update LIAUA
- Dec 9, 2009 — Administrative update LIAUA
- Apr 10, 2009 — Vanity call sign granted VANGRT
- Apr 10, 2009 — License issued LIISS
-
- Licensee
- Brian P Markham
- Address
- 22959 E Smoky Hill Rd Apt C-305
Aurora, CO 80015
- FRN
- 0018576702
- Last granted
- Mar 17, 2009
- Effective
- Mar 17, 2009
- Last action
- Apr 10, 2009
FCC actions (3)
- Apr 10, 2009 — License canceled LICAN
- Mar 17, 2009 — License issued LIISS
- Mar 17, 2009 — 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 May 29, 2025 → Oct 4, 2026 · 4 snapshots · as AB0JT
Brian P Markham
101 Rainbow Dr # 16945, Livingston, TX 77399 - Seen May 28, 2012 → Oct 4, 2026 · 46 snapshots · as N4GSX
Brian P Markham
12050 Little Patuxent Pkwy Apt E, Columbia, MD 21044 - Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as KD0GXV
Brian P Markham
22959 E Smoky Hill Rd Apt C-305, Aurora, CO 80015 - Seen Apr 27, 2024 → Apr 25, 2025 · 8 snapshots · as AB0JT
Brian P Markham
2097 Hodesha Ct, Grand Junction, CO 81507 - Seen Sep 5, 2017 → Apr 16, 2022 · 8 snapshots · as AB0JT
Brian P Markham
2097 Hodesha Way, Grand Junction, CO 81507 - Seen May 19, 2015 → May 12, 2017 · 15 snapshots · as AB0JT
Brian P Markham
8315 Telegraph Rd # 223, Odenton, MD 21113 - Seen May 27, 2010 → Nov 10, 2011 · 3 snapshots · as N4GSX
Brian P Markham
22959 E Smoky Hill Rd Apt E304, Aurora, CO 80015
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KD0GXV in the last 24 hours. They show up here within seconds of KD0GXV beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.