🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 26, 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)
KB9TZO HAM
✅ Available for a vanity request — free since Jan 19, 2011.
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 Apr 7, 1999 → Apr 17, 2003 · 9 discs KB9TZO
· Technician · issued Jan 18, 1999, expires Jan 18, 2009
MICHAEL E. KOSTUCH
2567 S EIGHTH ST, MILWAUKEE, WI 53215
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 25, 2026 · 51 snapshots · as KB9TZO
MICHAEL E KOSTUCH
2567 S EIGHTH ST, MILWAUKEE, WI 53215
No APRS positions, PSK Reporter reports or WSPR spots for KB9TZO in the last 24 hours. They show up here within seconds of KB9TZO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.