N9TPB
FCC License Search
🕒 FCC license data updated today 7:16 am CDT (FCC files through Oct 7, 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)K4SJO HAM
✅ Never issued — K4SJO 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 Sep 22, 2025 as choice 3: not granted, that applicant got W4SJO instead.
Last requested Sep 22, 2025 as choice 3: not granted, that applicant got W4SJO instead.
The FCC has no record of K4SJO ever being issued.
K4SJO 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.
- 1968 · 1 edition
K4SJO · class G
James E. Harper
1005 N.e, 18th St
Spring 1968 p.295 - 1967 · 1 edition
K4SJO · class G
Roy V.harris 111
1908 16th Av.s, Birmingham 5 Al
Fall 1967 p.290 - 1961 → 1966 · 4 editions
K4SJO
James E. Harper
1005 N.e, 18th St.
Spring 1961 p.264, Fall 1964 p.263, Summer 1965 p.264, Spring 1966 p.266 - 1960 · 1 edition
K4SJO
Bill L1 Swartz
911 Sew, 29th Av
Winter 1960 p.264 - 1958 · 1 edition
K4SJO
Jam Es E. Harper
109 S.w. Sixth St., F Ort Lauderdale, FL
Summer 1958 p.218
Others Requesting K4SJO
1 application listed K4SJO as a choice, newest first.
| Filed | Award | Applicant | Choice # | K4SJO | Result |
|---|---|---|---|---|---|
| Sep 22, 2025 | Oct 10, 2025 | KZ4WT · Scott W Johnson · Prospect, VA | 3 | Not granted | They got W4SJO (choice 1) |