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

KF4MUX HAM

✅ Never issued — KF4MUX 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 Jan 23, 2004 as choice 3: not granted, that applicant got KI4VHF instead.
The FCC has no record of KF4MUX ever being issued.

Others Requesting KF4MUX

1 application listed KF4MUX as a choice, newest first.

FiledAwardApplicantChoice #KF4MUXResult
Jan 23, 2004 Feb 10, 2004 KF4UUQ · JERRY R BELCHER · MANASSAS, VA 3Not granted They got KI4VHF (choice 1)