🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 19, 2026) · next update today 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)
KD4CTO HAM
✅ Available for a vanity request — free since Jul 21, 2005.
2x3 call: any licensee can request it.
No pending applications list it.
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
Seen Oct 31, 1994 → Apr 17, 2003 · 17 discs KD4CTO
· Technician Plus · issued Jul 20, 1993, expires Jul 20, 2003
MARIE LUISE GIESE
5113 ARRIT CT, BURKE, VA 22015
Seen Sep 9, 1993 → May 3, 1994 · 2 discs KD4CTO
· Technician · issued Jul 20, 1993, expires Jul 20, 2003
MARIE LUISE GIESE
5113 ARRIT CT, BURKE, VA 22015
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 18, 2026 · 50 snapshots · as KD4CTO
MARIE LUISE GIESE
5113 ARRIT CT, BURKE, VA 22015
From scanned copies of the printed callbooks (government lists from 1913, then the Radio Amateur Callbook to 1997), read by OCR, so names and streets can carry typos. Each line is one or more editions in a row showing the same name at the same address.
1997 · 1 edition KD4CTO · class P
Marie Luise Giese 511j Arrit Ct, Burke, VA 22015 1997 p.606
1994 · 1 edition KD4CTO · class T
Marie Luise Giese 5113 Arrit Ct, Burke, VA 22015 1994 p.536
1993 · 1 edition KD4CTO · class T
Marie Luise Giese 31&39 Brown St, Garden City, MI 48135 1993 p.509
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for KD4CTO in the last 24 hours. They show up here within seconds of KD4CTO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.