🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 2, 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, WI
KR4CTW HAM
⏳
Not available yet — opens for vanity requests
Jun 19, 2027 , two years after the license was canceled (Jun 18, 2025).
2x3 call: any licensee can request it.
No pending applications list it.
📬 QSL:
LoTW user · last upload Apr 30, 2025
· not eQSL AG
· QRZ · HamQTH
Not currently held
· 1 holder on record
Previous holder: Matthew Baker
Held KR4CTW Apr 1, 2025 → Jun 18, 2025
· first licensed Apr 1, 2025 as KR4CTW
· 3 licenses · FRN 0036852283
KQ9X
Active
Amateur Extra · vanity
Jul 18, 2025 → expires Jul 18, 2035
Licensee Matthew Baker
Address PO Box 47 Rocky Face, GA 30740-9491
34.7574, -85.0720 (ZIP center) · Grid
EM74ls · CQ 5 · ITU 8 ·
map ↗
FRN 0036852283
Previous call KZ4UG (General)
Last granted Jul 18, 2025
Effective Jul 18, 2025
Last action Jul 18, 2025
FCC actions (2)
Jul 18, 2025 — Vanity call sign granted VANGRT Jul 18, 2025 — License issued LIISS
KZ4UG
Canceled
Amateur Extra
Apr 1, 2025 → Jul 18, 2025 (canceled)
Licensee Matthew Baker
Address PO Box 47 Rocky Face, GA 30740-9491
34.7574, -85.0720 (ZIP center) · Grid
EM74ls · CQ 5 · ITU 8 ·
map ↗
FRN 0036852283
Previous call KR4CTW (General)
Last granted Apr 1, 2025
Effective Jun 18, 2025
Last action Jul 18, 2025
FCC actions (3)
Jul 18, 2025 — License canceled LICAN Jun 18, 2025 — Systematic call sign granted SYSGRT Jun 18, 2025 — License issued LIISS
KR4CTW
Canceled
Amateur Extra
Apr 1, 2025 → Jun 18, 2025 (canceled)
Licensee Matthew Baker
Address PO Box 47 Rocky Face, GA 30740-9491
34.7574, -85.0720 (ZIP center) · Grid
EM74ls · CQ 5 · ITU 8 ·
map ↗
FRN 0036852283
Last granted Apr 1, 2025
Effective Jun 18, 2025
Last action Jun 18, 2025
FCC actions (5)
Jun 18, 2025 — License canceled LICAN Apr 17, 2025 — Administrative update LIAUA Apr 3, 2025 — License modified LIMOD Apr 1, 2025 — License issued LIISS Apr 1, 2025 — 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 25, 2025 → Sep 27, 2026 · 6 snapshots · as KR4CTW
Matthew Baker
PO Box 47 Rocky Face, GA 30740-9491
34.7574, -85.0720 (ZIP center) · Grid
EM74ls · CQ 5 · ITU 8 ·
map ↗
Seen Apr 25, 2025 → May 29, 2025 · 2 snapshots · as KR4CTW
Matthew Baker
PO Box 47, Rocky Face, GA 30740-9491
34.7574, -85.0720 (ZIP center) · Grid
EM74ls · CQ 5 · ITU 8 ·
map ↗
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KR4CTW in the last 24 hours. They show up here within seconds of KR4CTW beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.
Data: FCC Universal Licensing System (amateur & GMRS), NetLogger and more · site status
n9tpb.com · 73 de N9TPB