🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 26, 2026) · next update today 9:45 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)
KB4BYB HAM
✅ Available for a vanity request — KB4BYB was last held in the 1990s (license expired Oct 13, 1997), before the FCC's online records begin, so the two-year wait is long over. Confirm in the FCC's vanity system before applying.
2x3 call: any licensee can request it.
No pending applications list it.
Not in the FCC's online records (1999 → now), but held before then: see below.
Held Before 1999
KB4BYB in the 1993–2003 Callbooks
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 4, 1997 · 8 discs KB4BYB
· General · issued Oct 13, 1987, expires Oct 13, 1997
ROBERT B COX
3621 TWIN OAK LN, LOUISVILLE, KY 40219
KB4BYB in the Printed Callbooks, 1909–1997
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 KB4BYB
G Robe~ B Cox 3621 Twin Oak Ln, Louisville, KY 40219 1997 p.593
1995 · 1 edition KB4BYB
G Rober{ B Cox J611 Twin Oak Ln, Louisville, KY 40119 1995 p.587
1994 · 1 edition KB4BYB · class G
Robert B Cox 3621 Twin Oak Ln, Louisville, KY 40219 1994 p.525
1992 · 1 edition KB4BYB · class G
Robert B Cox J621 Twin Oak Ln, Louisville, KY 40219 1992 p.468
1990 → 1991 · 2 editions KB4BYB · class G
Robert B Cox 3621 Twin Oak Ln, Louisville, KY 40219 Winter 1990 p.421, Winter 1991 p.450
1988 · 1 edition KB4BYB · class G
Robert B Cox 3611 Twin Oak Ln, Louisville, KY 40119 Winter 1988 p.421
1987 · 1 edition KB4BYB · class G
Robert B Cox Jb1 L Twin Oak Ln, Louisville, KY 40119 Winter 1987 p.411
1986 · 1 edition KB4BYB · class G
Robert B Cox Jo21 Twin Oak Ln, Louisville, KY 40219 Winter 1986 p.411
1984 · 1 edition KB4BYB · class G
Robert.a Cox 3611 Twin Oak Ln, Louisville, KY 40119 Winter 1984 p.418
None → 1983 · 2 editions KB4BYB · class N
Robert B Cox 3621 Twin Oak Ln, Louisville, KY 40219 None p.330, Winter 1983 p.405