N9TPB FCC License Search

🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 8, 2026) · next update today 8:30 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)

W0RKU HAM

✅ Available for a vanity request — free since Jun 23, 2015.

1x3 call: Technician, General, Advanced and Amateur Extra licensees can request it. No pending applications list it.

📬 QSL: no LoTW uploads on record · not eQSL AG · QRZ · HamQTH

Not currently held · 1 holder on record · available since Jun 23, 2015

Previous holder: CARROLL R MARKIVEE

Held W0RKU Jun 22, 1993 → Jun 22, 2013 · first licensed Jun 22, 1993 as W0RKU · 1 license · FRN 0008689242
📖 In the printed callbooks since 1979 as W0RKU, before the FCC's online records

W0RKU Expired Amateur Extra Jun 22, 1993 → Jun 22, 2013 (expired)

Licensee
CARROLL R MARKIVEE

Address
311 CEDAR RIDGE
EUREKA, MO 63025
38.4909, -90.6157 (ZIP center) · Grid EM48ql · CQ 4 · ITU 7 · map ↗

FRN
0008689242

Last granted
Mar 28, 2003

Effective
Mar 28, 2003

Last action
Jun 24, 2015
FCC actions (3)
- Jun 24, 2015 — License expired LIEXP
- Mar 28, 2003 — License renewed LIREN
- Mar 26, 2003 — 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 Apr 17, 2003 · 1 disc
W0RKU · Amateur Extra · issued Mar 28, 2003, expires Jun 22, 2013
CARROLL R MARKIVEE
311 CEDAR RIDGE, EUREKA, MO 63025
Seen Sep 9, 1993 → Oct 25, 2002 · 18 discs
W0RKU · Amateur Extra · issued Jun 22, 1993, expires Jun 22, 2003
CARROLL R. MARKIVEE
71 CEDAR RIDGE, EUREKA, MO 63025

Address history

From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.

Seen Nov 7, 2004 → Oct 4, 2026 · 48 snapshots · as W0RKU
CARROLL R MARKIVEE
311 CEDAR RIDGE, EUREKA, MO 63025
38.4909, -90.6157 (ZIP center) · Grid EM48ql · CQ 4 · ITU 7 · map ↗

W0RKU 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.

1994 · 1 edition
W0RKU · class E
Carroll R Markivee
71 Cedar Ridge, Eureka, MO 63025
1994 p.100
1982 → 1987 · 3 editions
W0RKU · class E
E Carroll R Markivee
336 Tulip Dr, St Louis, MO 63119
Winter 1982 p.82, Winter 1983 p.85, Winter 1987 p.80
1980 · 1 edition
W0RKU · class E
Carroll Rmarkivee
2609 Ridgefield Rd, Columbia, MO 65201
Winter 1980 p.74
1979 · 1 edition
W0RKU · class A
Carroll R Markivee
2609 Ridaefield Rd, Columbia, MO 65201
Winter 1979 p.68
1974 · 1 edition
W0RKU · class A
Bo Ot Paflaishaker
1021 E Williams Dr
1974 p.583
1957 → 1958 · 2 editions
W0RKU
Charles S. Wittmaack
144 Washington St., Ida Grove, IA
Fall 1957 p.64, Summer 1958 p.35
1955 · 1 edition
W0RKU
C H A R L E S S. W I T T M A A C K
144 Washington St., Ida Grove, IA
Fall 1955 p.42
1954 · 1 edition
W0RKU
Charles S. Wittmaack
144 Washington St., Ida Grove, IA
Fall 1954 p.22
None · 1 edition
W0RKU · class A
Paul P Flaishaker
1021 E Williams Dr
None p.583

📡 On the Air: APRS, Digital & WSPR Spots

No APRS positions, PSK Reporter reports or WSPR spots for W0RKU in the last 24 hours. They show up here within seconds of W0RKU beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.