🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 19, 2026) · next update today 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)
K4BZU HAM
✅ Never issued — K4BZU isn't in the FCC's public license data (which starts in 1999) or the 1993–2003 callbooks, and nothing in it blocks a vanity request. Calls like this are usually granted when requested.
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it.
No pending applications list it.
Last requested Mar 16, 2000 as choice 2:
not granted, that applicant got N4BZU instead.
The FCC has no record of K4BZU ever being issued.
K4BZU 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.
1970 → 1976 · 8 editions K4BZU · class G
Rnbert W Crisman 3077 S Abingdon St Spring 1970 p.237, Winter 1971 p.230, Fall 1971 p.232, Winter 1972 p.235, Winter 1973 p.235, 1974 p.207, Winter 1975 p.229, Winter 1976 p.234
1963 · 1 edition K4BZU
Clarence M Young, 2289-A Brown Av, Memphi S 8 Tenn Summer 1963 p.228
1955 → 1962 · 9 editions K4BZU
Clarence M. Young 2289-A Brown Av, Memphis 8 Tenn Fall 1955 p.164, Spring 1956 p.150, Fall 1957 p.196, Summer 1958 p.183, Spring 1959 p.192, Winter 1960 p.218, Spring 1961 p.218, Fall 1961 p.231, Fall 1962 p.220
None · 1 edition K4BZU · class G
Robert W Crisman 3407 Valewood Dr None p.207
Others Requesting K4BZU
1 application listed K4BZU as a choice, newest first.