N9TPB FCC License Search
🕒 FCC license data updated yesterday 7:16 am CDT (FCC files through Oct 7, 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)

K6DUP HAM

✅ Never issued — K6DUP 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 Oct 15, 2018 as choice 4: not granted, that applicant got NJ6Z instead.
The FCC has no record of K6DUP ever being issued.
K6DUP 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.

Others Requesting K6DUP

1 application listed K6DUP as a choice, newest first.

FiledAwardApplicantChoice #K6DUPResult
Oct 15, 2018 Nov 2, 2018 KM6JHG · Zihan Chen · Irvine, CA 4Not granted They got NJ6Z (choice 1)