🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 19, 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)
KA7TTB HAM
✅ Available for a vanity request — free since May 12, 2016.
2x3 call: any licensee can request it.
No pending applications list it.
Not currently held
· 1 holder on record
· available since May 12, 2016
Previous holder: WILLIAM T ROBERTSON
Held KA7TTB Mar 2, 1993 → May 11, 2014
· first licensed Mar 2, 1993 as KA7TTB
· 1 license · FRN 0004664330 📖 In the printed callbooks since 1989 as KA7TTB, before the FCC's online records
KA7TTBExpiredTechnicianMar 2, 1993 → May 11, 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 Oct 31, 1994 → Apr 17, 2003 · 17 discs KA7TTB
· Technician Plus · issued Mar 2, 1993, expires Mar 2, 2003
WILLIAM T. ROBERTSON
1936 14TH ST, OLIVEHURST, CA 98961
Seen Sep 9, 1993 → May 3, 1994 · 2 discs KA7TTB
· Technician · issued Mar 2, 1993, expires Mar 2, 2003
WILLIAM T ROBERTSON
1936 14TH ST, OLIVEHURST, CA 98961
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 18, 2026 · 50 snapshots · as KA7TTB
WILLIAM T ROBERTSON
29381 Park St., Shedd, OR 97377
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 → 1995 · 2 editions KA7TTB · class T
William T Robertson 1936 14th St, Olivehurst, CA 95961 1994 p.1385, 1995 p.1512
1989 → 1992 · 3 editions KA7TTB · class N
William T Robertson 508 Adaline St, Carson City, NV 89701 Winter 1989 p.1047, Winter 1991 p.1158, 1992 p.1210
1987 · 1 edition KA7TTB · class N
Wilfiam T R~rtson 506 Adaline S~ Carson City, NV 89701 Winter 1987 p.1000
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for KA7TTB in the last 24 hours. They show up here within seconds of KA7TTB beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.