N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 15, 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)K4KXQ HAM
✅ Available for a vanity request — free since Jun 30, 2023.
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 30, 2023
Previous holder: ROBERT V BOLDERSON SR
Held K4KXQ Dec 4, 1990 → Jun 29, 2021
· first licensed Dec 4, 1990 as K4KXQ
· 1 license · FRN 0005200753
📖 In the printed callbooks since 1957 as K4KXQ, before the FCC's online records
-
- Licensee
- ROBERT V BOLDERSON SR
- Address
- 13570 WESTPORT DR APT C207
SEBASTIAN, FL 32958
- FRN
- 0005200753
- Last granted
- Mar 31, 2011
- Effective
- Mar 31, 2011
- Last action
- Jul 12, 2023
FCC actions (4)
- Jul 12, 2023 — License expired LIEXP
- Mar 31, 2011 — License renewed LIREN
- Aug 12, 2008 — Administrative update LIAUA
- Jun 29, 2001 — License renewed LIREN
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 Nov 11, 1998 → Apr 7, 1999 · 2 discs
K4KXQ · Advanced · issued Jul 14, 1998, expires Dec 4, 2000
ROBERT V BOLDERSON SR .
95401 OVERSEAS HWY, KEY LARGO, FL 33037 - Seen Sep 9, 1993 → Mar 9, 1998 · 9 discs
K4KXQ · Advanced · issued Dec 4, 1990, expires Dec 4, 2000
ROBERT V BOLDERSON SR
1501 COPA D ORO, MARATHON, FL 33050
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Oct 17, 2011 → Oct 11, 2026 · 47 snapshots · as K4KXQ
ROBERT V BOLDERSON SR
13570 WESTPORT DR APT C207, SEBASTIAN, FL 32958 - Seen May 27, 2010 · 1 snapshot · as K4KXQ
ROBERT V BOLDERSON SR
2023 e. lakeview drive, sebastian, FL 32958 - Seen Nov 7, 2004 · 1 snapshot · as K4KXQ
ROBERT V BOLDERSON SR
586 PERIWINKLE DR, SABASTIAN, FL 32958
Earlier Holders
K4KXQ in the 1993–2003 Callbooks
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 Nov 1, 2001 → Apr 17, 2003 · 4 discs
K4KXQ · Advanced · issued Jun 29, 2001, expires Jun 29, 2011
ROBERT V. BOLDERSON; SR
586 PERIWINKLE DR, SABASTIAN, FL 32958
K4KXQ 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.
- 1986 → 1991 · 5 editions
K4KXQ · class A
Robert V Bolderson
75 Isle Of Venice, Fort Lauderdale, FL 33301
Winter 1986 p.503, Winter 1988 p.514, Winter 1989 p.521, Winter 1990 p.521, Winter 1991 p.553 - 1984 · 1 edition
K4KXQ · class A
Robert V Bolderson 5 75 Isle Of Venice
Fort Lauderdale, FL 33301
Winter 1984 p.508 - 1983 · 1 edition
K4KXQ · class A
William A Warner Jr
2490 Creekside Dr, Rock Hill, FL 33312
Winter 1983 p.484 - 1980 → 1981 · 2 editions
K4KXQ · class A
Robert V Bolderson
348 N.w 46th St, Fort Lauderdale, FL 33309
Winter 1980 p.460, 1981 p.388 - 1979 · 1 edition
K4KXQ · class A
Robert V Boidersoo
348 N W 46th Si, Fort Lauderdale, FL 33309
Winter 1979 p.431 - 1978 · 1 edition
K4KXQ · class A
Robert V Bolderson
348 N W 46th St, Fort Lauderdale, FL 33309
Winter 1978 p.403 - 1963 → 1977 · 11 editions
K4KXQ · class A
Robert V. Bolderson
348 N.w, 46th St.
Summer 1963 p.260, Fall 1964 p.240, Summer 1965 p.243, Winter 1971 p.263, Fall 1971 p.265, Winter 1972 p.268, Winter 1973 p.268, 1974 p.245, Winter 1975 p.271, Winter 1976 p.274, Winter 1977 p.289 - 1961 · 1 edition
K4KXQ
Robert V. Bolderson* 348 N.w
46th St
Spring 1961 p.243 - 1959 · 1 edition
K4KXQ
Robert V. Bolderson
505 S.e, 23rd St
Spring 1959 p.212 - 1957 → 1958 · 2 editions
K4KXQ
Robert V.bolderson
505s.e, 23rdst., Fortlauderdale, FL
Fall 1957 p.216, Summer 1958 p.202 - None · 1 edition
K4KXQ · class A
Robert V Bolderson
75 Isle Of Venice, Fort Lauderdale Fl
None p.245
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for K4KXQ in the last 24 hours. They show up here within seconds of K4KXQ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.