N9TPB FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 13, 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)

WB4SI HAM

✅ Never issued — WB4SI 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 Jan 23, 2004 as choice 4: not granted, that applicant got WA2SID instead.
The FCC has no record of WB4SI ever being issued.

Others Requesting WB4SI

2 applications listed WB4SI as a choice, newest first.

FiledAwardApplicantChoice #WB4SIResult
Jan 23, 2004 Feb 10, 2004 KC2IFS · SIDNEY W LA FAYETTE · COLTON, NY 4Not granted They got WA2SID (choice 1)
Dec 31, 2003 Jan 18, 2004 WB1ELJ · JAMES R FRYSINGER · CHARLESTON, SC 3Not granted They got WE4SI (choice 1)