N9TPB
FCC License Search
🕒 FCC license data updated yesterday 9:45 am CDT · next update today 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, WIKI4TRT HAM
✅ Available for a vanity request — free since Mar 14, 2009.
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, 2009
Previous holder: Vishnu K Singh
Held KI4TRT Feb 21, 2007 → Mar 13, 2007 · first licensed Feb 21, 2007 as KI4TRT · 4 licenses · FRN 0016131427
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📦 Moved: Lawrenceville, GA → Coral Springs, FL
- Licensee
- Vishnu K Singh
- Address
- 5645 Coral Ridge Dr Suite 432
Coral Springs, FL 33076
- FRN
- 0016131427
- Previous call
- AJ4VS (General)
- Last granted
- Sep 2, 2026
- Effective
- Sep 2, 2026
- Last action
- Sep 2, 2026
FCC actions (8)
- Sep 2, 2026 — License renewed LIREN
- Mar 5, 2026 — Administrative update LIAUA
- Jun 16, 2020 — Administrative update LIAUA
- Dec 13, 2018 — Administrative update LIAUA
- Nov 10, 2016 — Administrative update LIAUA
- Sep 13, 2016 — Administrative update LIAUA
- Sep 7, 2016 — Vanity call sign granted VANGRT
- Sep 7, 2016 — License issued LIISS
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📦 Moved: Fort Lauderdale, FL → Lawrenceville, GA
- Licensee
- Vishnu K Singh
- Address
- 755 Braves Ave #1407
Lawrenceville, GA 30043
- FRN
- 0016131427
- Previous call
- K4VKS (General)
- Last granted
- Dec 22, 2009
- Effective
- Jun 9, 2016
- Last action
- Sep 7, 2016
FCC actions (8)
- Sep 7, 2016 — License canceled LICAN
- Jun 9, 2016 — Administrative update LIAUA
- Sep 24, 2013 — Administrative update LIAUA
- Sep 13, 2013 — Administrative update LIAUA
- Mar 26, 2013 — Administrative update LIAUA
- Apr 8, 2010 — Administrative update LIAUA
- Dec 22, 2009 — Vanity call sign granted VANGRT
- Dec 22, 2009 — License issued LIISS
-
- Licensee
- Vishnu K Singh
- Address
- PO Box 327522
Fort Lauderdale, FL 33332
- FRN
- 0016131427
- Previous call
- KI4TRT (General)
- Last granted
- Mar 13, 2007
- Effective
- Nov 18, 2009
- Last action
- Dec 22, 2009
FCC actions (5)
- Dec 22, 2009 — License canceled LICAN
- Nov 18, 2009 — License modified LIMOD
- Aug 28, 2009 — License modified LIMOD
- Mar 13, 2007 — Vanity call sign granted VANGRT
- Mar 13, 2007 — License issued LIISS
-
- Licensee
- Vishnu K Singh
- Address
- PO Box 327522
Fort Lauderdale, FL 33332
- FRN
- 0016131427
- Last granted
- Feb 21, 2007
- Effective
- Feb 22, 2007
- Last action
- Mar 13, 2007
FCC actions (4)
- Mar 13, 2007 — License canceled LICAN
- Feb 22, 2007 — Administrative update LIAUA
- Feb 21, 2007 — License issued LIISS
- Feb 21, 2007 — 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 W4TF
Vishnu K Singh
5645 Coral Ridge Dr Suite 432, Coral Springs, FL 33076 - Seen Jun 30, 2016 → Oct 4, 2026 · 26 snapshots · as AJ4VS
Vishnu K Singh
755 Braves Ave #1407, Lawrenceville, GA 30043 - Seen May 27, 2010 → Oct 4, 2026 · 94 snapshots · as KI4TRT
Vishnu K Singh
PO Box 327522
Fort Lauderdale, FL 33332 - Seen Apr 16, 2022 → Sep 25, 2025 · 11 snapshots · as W4TF
Vishnu K Singh
10650 Moore Dr, Parkland, FL 33076 - Seen Jan 22, 2019 → May 6, 2019 · 2 snapshots · as W4TF
Vishnu K Singh
1722 Sheridan St, Ste #197, Hollywood, FL 33020 - Seen Apr 6, 2013 → Sep 3, 2018 · 11 snapshots · as W4TF
Vishnu K Singh
6110 SW 190 Ave, Southwest Ranches, FL 33332 - Seen Oct 22, 2013 → Nov 4, 2016 · 14 snapshots · as W4TF
Vishnu K Singh
10548 nw 36 st, coral springs, FL 33065 - Seen May 27, 2010 → Feb 18, 2013 · 6 snapshots · as AJ4VS
Vishnu K Singh
3354 SW Martin Street, Port Saint Lucie, FL 34953
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KI4TRT in the last 24 hours. They show up here within seconds of KI4TRT beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.