N9TPB
FCC License Search
🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 21, 2026) · next update today 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)K7ZIO HAM
✅ Available for a vanity request — free since Oct 15, 2026.
1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it.
No pending applications list it.
Last requested Jun 30, 2026 as choice 6: not granted, that applicant got K3ZIO instead.
Last requested Jun 30, 2026 as choice 6: not granted, that applicant got K3ZIO instead.
📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH
Not currently held · 1 holder on record · available since Oct 15, 2026
Previous holder: Donald L Sywassink
Held K7ZIO Sep 28, 1984 → Oct 14, 2024
· first licensed Sep 28, 1984 as K7ZIO
· 1 license · FRN 0011327632
📖 In the printed callbooks since 1967 as K7ZIO, before the FCC's online records
-
- Licensee
- Donald L Sywassink
- Address
- 3477 E RODEO DR APT 202
SIERRA VISTA, AZ 85635
- FRN
- 0011327632
- Last granted
- Aug 5, 2014
- Effective
- Aug 5, 2014
- Last action
- Oct 16, 2026
FCC actions (4)
- Oct 16, 2026 — License expired LIEXP
- Aug 5, 2014 — License renewed LIREN
- Aug 2, 2004 — License renewed LIREN
- Aug 2, 2004 — FCC action LITIN
Callbook Records, 1993–2003
From the FCC amateur database as published on the QRZ! callsign CD-ROMs, 1993–2003, before and alongside the FCC's online records (which start in 1999). "Seen" dates are the first and last disc showing that record; the issue date is the FCC's, so it can be a renewal of an even older license.
- Seen Oct 31, 1994 → Apr 17, 2003 · 17 discs
K7ZIO · Advanced · issued Oct 14, 1994, expires Oct 14, 2004
DONALD L. SYWASSINK
4525 E PASEO ARRUZA, SIERRA VISTA, AZ 85635-4508 - Seen Sep 9, 1993 → May 3, 1994 · 2 discs
K7ZIO · Advanced · issued Sep 28, 1984, expires Sep 28, 1994
DONALD L SYWASSINK
4525 PASEO ARRUZA, SIERRA VISTA, AZ 85635
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
K7ZIO 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.
- 1995 → 1996 · 2 editions
K7ZIO · class A
Donald L Sywassink
4515 Paseo Arruza, Sierra Vista, AZ 65635
1995 p.1549, 1996 p.1596 - 1991 → 1994 · 3 editions
K7ZIO · class A
Donald L Sywassink
4525 Paseo Arruza, Sierra Vista A1 85635
Winter 1991 p.1176, 1992 p.1227, 1994 p.1418 - 1990 · 1 edition
K7ZIO · class A
Donald L Sywassink
4515 Paseo Arruza, Sierra Vista, AZ 85635
Winter 1990 p.1082 - 1985 → 1989 · 3 editions
K7ZIO · class A
Donald L Sywassink
4525 Paseo Arruza, Sierra Vista, AZ 85635
Winter 1985 p.1001, Winter 1988 p.1049, Winter 1989 p.1065 - 1984 · 1 edition
K7ZIO · class A
Donald L Sywassink
4515 Paseo Arruza, Sierra Vista Az 85bl5
Winter 1984 p.996 - 1981 → 1983 · 2 editions
K7ZIO · class A
Donald L Sywassink
4525 Paseo Arruza, Sierra Vista .
Winter 1981 p.891, Winter 1983 p.956 - 1967 → 1980 · 9 editions
K7ZIO · class A
Donald L. Sywassink
816 Langan Av Nw, Sierra Vista, AZ 85635
Fall 1967 p.483, Spring 1968 p.496, Fall 1971 p.493, Winter 1972 p.500, Winter 1975 p.496, Winter 1976 p.506, Winter 1977 p.550, Winter 1979 p.829, Winter 1980 p.882 - 1966 · 1 edition
K7ZIO
Angus C . Cooper
9 4 2 L An Ca S T Er Or. N. E, S A Le M Orfg
Spring 1966 p.445 - 1965 · 1 edition
K7ZIO
Donald Le Sywassink
1244 -F- Av, Douglas Ariz
Summer 1965 p.442 - None · 1 edition
K7ZIO · class A
Donald L Sywassink
4525 Paseo Arruza, Sierra Vista Az
None p.878
Others Requesting K7ZIO
1 application listed K7ZIO as a choice, newest first.
| Filed | Award | Applicant | Choice # | K7ZIO | Result |
|---|---|---|---|---|---|
| Jun 30, 2026 | Jul 18, 2026 | KD3DLR · Jeromy Ross · Altoona, PA | 6 | Not granted | They got K3ZIO (choice 1) |
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for K7ZIO in the last 24 hours. They show up here within seconds of K7ZIO beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.