N9TPB
FCC License Search
🕒 FCC license data updated today 9:42 am CDT (FCC files through Sep 30, 2026) · next update tomorrow 9:15 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, WIAC0AI HAM
✅ Available for a vanity request — free since Mar 21, 2006.
2x2 call: only Amateur Extra licensees can request it.
No pending applications list it.
Not currently held · 1 holder on record · available since Mar 21, 2006
Previous holder: Joseph C Klimczak
Held AC0AI Feb 18, 2004 → Mar 20, 2004 · first licensed Feb 18, 2004 as KC0RPX · 3 licenses · FRN 0010062024
-
📦 Moved: St Louis, MO → Creve Coeur, MO
- Licensee
- Joseph C Klimczak
- Address
- Attn: Joseph C Klimczak
321 S Mosley Road
Creve Coeur, MO 63141
- FRN
- 0010062024
- Previous call
- AC0AI (General)
- Last granted
- Dec 28, 2023
- Effective
- Dec 28, 2023
- Last action
- Dec 28, 2023
FCC actions (7)
- Dec 28, 2023 — License renewed LIREN
- Jan 7, 2014 — License renewed LIREN
- Oct 6, 2011 — Administrative update LIAUA
- Jan 6, 2010 — Administrative update LIAUA
- Jun 20, 2006 — Administrative update LIAUA
- Mar 20, 2004 — Vanity call sign granted VANGRT
- Mar 20, 2004 — License issued LIISS
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- Licensee
- Joseph C Klimczak
- Address
- 300 N 4th - Apt 405
St Louis, MO 63102
- FRN
- 0010062024
- Previous call
- KC0RPX (General)
- Last granted
- Feb 18, 2004
- Effective
- Mar 1, 2004
- Last action
- Mar 20, 2004
FCC actions (3)
- Mar 20, 2004 — License canceled LICAN
- Mar 1, 2004 — Systematic call sign granted SYSGRT
- Mar 1, 2004 — License issued LIISS
-
- Licensee
- Joseph C Klimczak
- Address
- 300 N 4th - Apt 405
St Louis, MO 63102
- FRN
- 0010062024
- Last granted
- Feb 18, 2004
- Effective
- Feb 18, 2004
- Last action
- Mar 1, 2004
FCC actions (2)
- Mar 1, 2004 — License canceled LICAN
- Feb 18, 2004 — License issued LIISS
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Oct 17, 2011 → Sep 27, 2026 · 45 snapshots · as K4LSU
Joseph C Klimczak
Attn: Joseph C Klimczak
321 S Mosley Road, Creve Coeur, MO 63141 - Seen Nov 7, 2004 → Sep 27, 2026 · 95 snapshots · as KC0RPX
Joseph C Klimczak
300 N 4th - Apt 405, St Louis, MO 63102 - Seen May 27, 2010 · 1 snapshot · as K4LSU
Joseph C Klimczak
321 S Mosley Road, Creve Coeur, MO 63101-8764
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for AC0AI in the last 24 hours. They show up here within seconds of AC0AI beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.