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, WIKJ4EUO HAM
✅ Available for a vanity request — free since Jun 6, 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 Jun 6, 2011
Previous holder: Mark A Shamrock Sr
Held KJ4EUO Jun 17, 2008 → Jun 5, 2009 · first licensed Jun 17, 2008 as KJ4EUO · 3 licenses · FRN 0017872482
-
- Licensee
- Mark A Shamrock Sr
- Address
- 4516 Sw 20th Pl
Cape Coral, FL 33914
- FRN
- 0017872482
- Previous call
- W9MSS (General)
- Last granted
- Feb 9, 2021
- Effective
- Feb 9, 2021
- Last action
- Feb 9, 2021
FCC actions (3)
- Feb 9, 2021 — License renewed LIREN
- Apr 26, 2011 — Vanity call sign granted VANGRT
- Apr 26, 2011 — License issued LIISS
-
- Licensee
- Mark A Shamrock Sr
- Address
- 4516 Sw 20th Pl
Cape Coral, FL 33914
- FRN
- 0017872482
- Previous call
- KJ4EUO (General)
- Last granted
- Jun 5, 2009
- Effective
- Sep 21, 2009
- Last action
- Apr 26, 2011
FCC actions (4)
- Apr 26, 2011 — License canceled LICAN
- Sep 21, 2009 — License modified LIMOD
- Jun 5, 2009 — Vanity call sign granted VANGRT
- Jun 5, 2009 — License issued LIISS
-
- Licensee
- Mark A Shamrock Sr
- Address
- 4516 Sw 20th Pl
Cape Coral, FL 33914
- FRN
- 0017872482
- Last granted
- Jun 17, 2008
- Effective
- Sep 16, 2008
- Last action
- Jun 5, 2009
FCC actions (4)
- Jun 5, 2009 — License canceled LICAN
- Sep 16, 2008 — License modified LIMOD
- Jun 17, 2008 — License issued LIISS
- Jun 17, 2008 — 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 27, 2010 → Oct 4, 2026 · 140 snapshots · as KJ4EUO
Mark A Shamrock Sr
4516 Sw 20th Pl, Cape Coral, FL 33914
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KJ4EUO in the last 24 hours. They show up here within seconds of KJ4EUO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.