🕒 FCC license data updated today 7:16 am CDT (FCC files through Oct 22, 2026) · next update today 8:30 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)
KA9YRW HAM
✅ Available for a vanity request — free since Apr 17, 2025.
2x3 call: any licensee can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since Apr 17, 2025
Previous holder: MICHAEL H LARSON
Held KA9YRW Jan 5, 1993 → Apr 16, 2023
· first licensed Jan 5, 1993 as KA9YRW
· 1 license · FRN 0008036436 📖 In the printed callbooks since 1989 as KA9YRW, before the FCC's online records
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 17, 2003 · 1 disc KA9YRW
· Technician · issued Dec 4, 2002, expires Jan 5, 2013
MICHAEL H LARSON
369 TOWNSVALLEY RD, HUDSON, WI 54016
Seen Oct 31, 1994 → Oct 25, 2002 · 16 discs KA9YRW
· Technician Plus · issued Jan 5, 1993, expires Jan 5, 2003
MICHAEL H. LARSON
369 TOWNSVALLEY RD, HUDSON, WI 54016
Seen Sep 9, 1993 → May 3, 1994 · 2 discs KA9YRW
· Technician · issued Jan 5, 1993, expires Jan 5, 2003
MICHAEL H LARSON
369 TOWNSVALLEY RD, HUDSON, WI 54016
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Oct 22, 2013 → Oct 18, 2026 · 41 snapshots · as KA9YRW
MICHAEL H LARSON
3846 80th Ave SE, Mercer Island, WA 98040
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.
1994 · 1 edition KA9YRW · class T
Michael H Larson 369 Townsvalley Rd, Hudson, WI 54016 1994 p.1698
1993 · 1 edition KA9YRW · class N
Michael H Larson Jb9 Townsvalley Rd, Hudson, WI 54016 1993 p.1598
1990 · 1 edition KA9YRW · class N
Michael H Larson 369 Townsvalley Rd, Hudson Wt 54016 Winter 1990 p.1305
1989 · 1 edition KA9YRW · class N
Michael H Larson Rt 3 Box 143-A, Hudson, WI 54016 Winter 1989 p.1286
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for KA9YRW in the last 24 hours. They show up here within seconds of KA9YRW beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.