🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 15, 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)
KA9CER HAM
✅ Available for a vanity request — free since Apr 13, 2026.
2x3 call: any licensee can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since Apr 13, 2026
Previous holder: ROGER L SIKORSKI
Held KA9CER Feb 24, 1984 → Apr 12, 2024
· first licensed Feb 24, 1984 as KA9CER
· 1 license · FRN 0010205839 📖 In the printed callbooks since 1980 as KA9CER, 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 May 3, 1994 → Apr 17, 2003 · 18 discs KA9CER
· Technician · issued Apr 12, 1994, expires Apr 12, 2004
ROGER L. SIKORSKI
W 310 S 9024 CHEROKEE PASS, MUKWONAGO, WI 53149
Seen Sep 9, 1993 · 1 disc KA9CER
· Technician · issued Feb 24, 1984, expires Feb 24, 1994
ROGER L SIKORSKI
R 6 W310 S9024 CHEROKEE PASS, MUSKONAGO, WI 53149
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 11, 2026 · 49 snapshots · as KA9CER
ROGER L SIKORSKI
W 310 S 9024 CHEROKEE PASS, MUKWONAGO, WI 53149
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.
1990 · 1 edition KA9CER · class T
Roger L Sikorski W 310 S 9014 Cherokee Pass, Rte 6 Winter 1990 p.1219
1989 · 1 edition KA9CER · class T
Roger L Sikorski W 310 S 9024 Cherokee Pass, Rte 6 Winter 1989 p.1200
1988 · 1 edition KA9CER · class T
Roger L Sikorski W 310 S 9014 Cherokee Pass, Rte 6 Winter 1988 p.1181
1985 → 1987 · 3 editions KA9CER
T ~~i~o~as~orski W 310 S 9024 Cherokee Pass, Rte 6 Winter 1985 p.1132, Winter 1986 p.1129, Winter 1987 p.1148
1984 · 1 edition KA9CER
T ~~ie 0 ~, S~orski, Wjio S9014 Chero Ee Pass Winter 1984 p.1131
1980 → 1983 · 2 editions KA9CER · class T
Roger L Sikorski W310 S9024 Cherokee Pass Winter 1980 p.1007, Winter 1983 p.1087
No APRS positions, PSK Reporter reports or WSPR spots for KA9CER in the last 24 hours. They show up here within seconds of KA9CER beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.