N9TPB FCC License Search
🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 20, 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)

KA9DU HAM

✅ Never issued — KA9DU 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.
2x2 call: Advanced and Amateur Extra licensees can request it. No pending applications list it.
Last requested Dec 17, 2002 as choice 1: not granted, that applicant got WA9DU instead.
The FCC has no record of KA9DU ever being issued.
KA9DU 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 KA9DU

1 application listed KA9DU as a choice, newest first.

FiledAwardApplicantChoice #KA9DUResult
Dec 17, 2002 Jan 4, 2003 KG9QO · DAVID E UNDERHILL · SPEEDWAY, IN 1Not granted They got WA9DU (choice 2)