🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 28, 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 · old CB calls like KHC1939 or 18Q3518 (1962–63 CB call books) · (205) 546-1767 (1990s CB directory phones)
W9ULX HAM
✅ Available for a vanity request — free since Jan 5, 2016.
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since Jan 5, 2016
Previous holder: ERNEST A CZOSEK
Held W9ULX Mar 30, 1984 → Jan 4, 2014
· first licensed Mar 30, 1984 as W9ULX
· 1 license · FRN 0009696436 📖 In the printed callbooks since 1936 as W9ULX, before the FCC's online records
W9ULXExpiredAmateur ExtraMar 30, 1984 → Jan 4, 2014 (expired)
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 W9ULX
· Amateur Extra · issued Jan 4, 1994, expires Jan 4, 2004
ERNEST A. CZOSEK
4820 CRESCENT, NORRIDGE, IL 60656
Seen Sep 9, 1993 · 1 disc W9ULX
· Amateur Extra · issued Mar 30, 1984, expires Mar 30, 1994
ERNEST A CZOSEK
4820 CRESCENT, NORRIDGE, IL 60656
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 W9ULX
ERNEST A CZOSEK
4820 CRESCENT, NORRIDGE, IL 60656
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 W9ULX · class E
Ernest A Czosek 4820 Crescent, Norridge Ll 60656 1997 p.1957
1995 · 1 edition W9ULX · class E
Ernest A Czolet 4b20, IL 60656 1995 p.1826
1987 → 1993 · 2 editions W9ULX · class E
E Ern•st A Czosek 4810 Crescent, Norridi• Il B0b5b Winter 1987 p.1225, 1993 p.1586
1985 · 1 edition W9ULX · class E
Ernest A Czosek 4b10 Crescent, Norridge Il &0&50 Winter 1985 p.1211
1980 → 1983 · 3 editions W9ULX · class A
Ernest A Czosek 4820 Crescent, Norridge, IL 60656 Winter 1980 p.1072, Winter 1982 p.1124, Winter 1983 p.1161
1979 · 1 edition W9ULX · class A
Emest A Czosek 4820 N Crescent Av, Chicago, IL 60656 Winter 1979 p.1010
1971 → 1977 · 8 editions W9ULX · class A
Ernest A Czosek 4820 Crescent Av, Norridge Ooo5o Il Winter 1971 p.614, Fall 1971 p.614, Winter 1972 p.620, Winter 1973 p.620, 1974 p.588, Winter 1975 p.614, Winter 1976 p.624, Winter 1977 p.674
1969 · 1 edition W9ULX · class A
Ernest A . Czosek 4 8 2 0 N Crescent, Norri Dge Summer 1969 p.593
1963 → 1966 · 2 editions W9ULX
Ernest Ae Czosek 2930 Ne Luna Av, Chicago 41 I Ll Summer 1963 p.569, Spring 1966 p.550
1962 · 1 edition W9ULX
Ernest A. C 2 0 S E K 2930 N.luna Av, Chicago 41 Ill Fall 1962 p.545
1960 → 1961 · 3 editions W9ULX
Ernest A. Czosek 2930 N.luna Av, Chicago 41 Ill Winter 1960 p.534, Spring 1961 p.535, Fall 1961 p.563
1958 → 1959 · 2 editions W9ULX
Ernest A. Czosek 2930 No. Luna Ave., Chicago 41, Iii. Summer 1958 p.450, Spring 1959 p.466
1957 · 1 edition W9ULX
E R N E S T A . C Z O S E K 2930 N O . Luna A V E ., C H I C A G O 4 1, 111. Fall 1957 p.431
1954 → 1956 · 3 editions W9ULX
Ernest A. Czosek 2930 No. Luna Ave., Chicago 41, 111. Fall 1954 p.307, Fall 1955 p.364, Spring 1956 p.360
1953 → 1954 · 2 editions W9ULX
Ernest A. Czosek 2930 No. Luna Street, Chicago, 111. Fall 1953 p.292, Spring 1954 p.302
1951 · 1 edition W9ULX
E R N E S T A . C Z O S E K 2930 N O, Luna S T R E E T, C H I C A G O, Iu. Spring 1951 p.254
1950 · 1 edition W9ULX
Ernest A. Czosek 2930 No. Luna Street, Chicago, HI Summer 1950 p.218
1948 → 1949 · 2 editions W9ULX
Ernest A. Czosek 3004 North Long, Chicago, HI Fall 1948 p.218, Summer 1949 p.211
1947 · 1 edition W9ULX
Ernest Czosek 3004 N. Long, Chicago, 111. Fall 1947 p.204
1936 → 1946 · 5 editions W9ULX
E. A. Czosek 5115 Pensacola Av., Chicago. Spring 1936 p.311, Fall 1937 p.146, Winter 1938 p.185, Winter 1941 p.221, Summer 1946 p.213
None · 1 edition W9ULX · class A
Ernest A Czosek 4820 Crescent Av, Norridge None p.588
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for W9ULX in the last 24 hours. They show up here within seconds of W9ULX beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.