🕒 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)
K0CTO HAM
✅ Never issued — K0CTO 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 May 30, 2003 as choice 2:
not granted, that applicant got N0CTO instead.
The FCC has no record of K0CTO ever being issued.
K0CTO 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.
1960 → 1961 · 2 editions K0CTO
Edward Ae Welch 1204 E. Fourth St, Mitchell S Oak Winter 1960 p.9, Spring 1961 p.8
1957 → 1959 · 3 editions K0CTO
Edward A. Welch 1204 East Fourth Street, Mitchell, SD Fall 1957 p.40, Summer 1958 p.7, Spring 1959 p.6
Others Requesting K0CTO
3 applications listed K0CTO as a choice, newest first.