🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 14, 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)
WB6CTO HAM
✅ Available for a vanity request — free since Mar 2, 2016.
2x3 call: any licensee can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since Mar 2, 2016
Previous holder: David J Kiedrowski
Held WB6CTO Jan 27, 1984 → Mar 1, 2014
· first licensed Jan 27, 1984 as WB6CTO
· 1 license · FRN 0002176857 📖 In the printed callbooks since 1965 as WB6CTO, before the FCC's online records
WB6CTOExpiredGeneralJan 27, 1984 → Mar 1, 2014 (expired)
Licensee
David J Kiedrowski
Address
7919 Chula Vista Dr Rancho Cucamonga, CA 91730-1924
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, 2000 → Apr 17, 2003 · 6 discs WB6CTO
· General · issued Jun 21, 2000, expires Mar 1, 2004
DAVID J. KIEDROWSKI
7919 CHULA VISTA DR, CUCAMONGA, CA 91730
Seen May 3, 1994 → May 2, 2000 · 12 discs WB6CTO
· Technician · issued Mar 1, 1994, expires Mar 1, 2004
DAVID J. KIEDROWSKI
7919 CHULA VISTA DR, CUCAMONGA, CA 91730
Seen Sep 9, 1993 · 1 disc WB6CTO
· Technician · issued Jan 27, 1984, expires Jan 27, 1994
DAVID J KIEDROWSKI
7919 CHULA VISTA DR, CUCAMONGA, CA 91730
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 WB6CTO
David J Kiedrowski
7919 Chula Vista Dr, Rancho Cucamonga, CA 91730-1924
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.
1996 · 1 edition WB6CTO · class T
David J Kiedrowski 7919 Chula Vista Dr, Cucamonga, CA 91730 1996 p.1137
1994 · 1 edition WB6CTO · class N
Jennifer R Carpentero 2118 Bonita, Ontario, CA 91761 1994 p.1018
1990 · 1 edition WB6CTO · class T
David J ~rowski 7919 Chula Vista Dr, Cucamonga, CA 91730 Winter 1990 p.796
1988 → 1989 · 2 editions WB6CTO · class T
David J Kiedrowski 7919 Chula Vista Dr, Cucamonga, CA 91730 Winter 1988 p.777, Winter 1989 p.784
1987 · 1 edition WB6CTO · class T
David J Ki•drowski 7919 C!u1a Vista Dr, Cucamonga, CA 91730 Winter 1987 p.757
1978 → 1981 · 4 editions WB6CTO · class T
David J Kiedrowski 7919 Chula Vista Dr, Cucamonga 91730 Winter 1978 p.590, Winter 1979 p.638, Winter 1980 p.673, 1981 p.606
1970 → 1977 · 9 editions WB6CTO · class T
David J. Kiedrowski 850 W. Calora St, San Dimas Spring 1970 p.381, Winter 1971 p.382, Fall 1971 p.383, Winter 1972 p.386, Winter 1973 p.386, 1974 p.357, Winter 1975 p.383, Winter 1976 p.391, Winter 1977 p.426
1969 · 1 edition WB6CTO · class T
David J . K I E D R O W S K I 850 W. Calora S T, S A N Dimas Summer 1969 p.376
1965 → 1967 · 3 editions WB6CTO · class T
David J. Kiedrowski 850 W, Ca.lora. St, San Dimas Summer 1965 p.346, Spring 1966 p.348, Fall 1967 p.377
1964 · 1 edition WB6CTO
David J . K I E D R O W S K I 850 W. C A Lo O A St. San Dimas Fall 1964 p.339
1963 · 1 edition WB6CTO
William J. Giede 14609 Spinning Av1 Gardena Summer 1963 p.363
None · 1 edition WB6CTO · class T
David J. Kiedrowski 7919 Chula Vista Dr, Cucamonga, CA 91730 None p.357
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for WB6CTO in the last 24 hours. They show up here within seconds of WB6CTO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.