N9TPB FCC License Search
🕒 FCC license data updated today 6:02 am CDT (FCC files through Oct 9, 2026) · next update today 9:45 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)

W4UMK HAM

✅ Never issued — W4UMK 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 14, 2009 as choice 3: not granted, that applicant got W4MKI instead.
The FCC has no record of W4UMK ever being issued.
W4UMK 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 W4UMK

1 application listed W4UMK as a choice, newest first.

FiledAwardApplicantChoice #W4UMKResult
Oct 14, 2009 Nov 1, 2009 KJ4GGS · Joseph W Whitefall · Englewood, FL 3Not granted They got W4MKI (choice 1)