N9TPB FCC License Search
🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 16, 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)

KA5COS HAM

✅ Never issued — KA5COS 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.
2x3 call: any licensee can request it. No pending applications list it.
Last requested May 6, 2024 as choice 2: not granted, that applicant got KM5COS instead.
The FCC has no record of KA5COS ever being issued.
KA5COS 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 KA5COS

1 application listed KA5COS as a choice, newest first.

FiledAwardApplicantChoice #KA5COSResult
May 6, 2024 May 24, 2024 KJ5FWL · Mark Meckler · Leander, TX 2Not granted They got KM5COS (choice 1)