🕒 FCC license data updated yesterday 7:15 am CST (FCC files through Nov 3, 2026) · next update today 6:00 am CST
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)
KC6CZO HAM
✅ Available for a vanity request — free since Aug 8, 2015.
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 Sep 9, 1993 → Apr 17, 2003 · 19 discs KC6CZO
· Advanced · issued Jun 22, 1993, expires Jun 22, 2003
MARK W. ROSS
1835A S CENTRE CITY PKY 122, ESCONDIDO, CA 92025
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen May 27, 2010 → Nov 1, 2026 · 51 snapshots · as KC6CZO
MARK W ROSS LVN
Attn: Mailing- PO Box 52 33128 Finch Street, Winchester, CA 92596
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 KC6CZO
A ~::!n~d:oss 18j5-A S Ntre City Pkwy 111, CA 1996 p.1140
1994 → 1995 · 2 editions KC6CZO · class A
Mark W Ross 1835-A S Centre City Pkwy 122 1994 p.1021, Winter 1995 p.1089
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for KC6CZO in the last 24 hours. They show up here within seconds of KC6CZO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.