🕒 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)
W4UDJ HAM
General classlicensed since 1988 (38 yrs)W4UDJ since 2018 · previously WA7NXVGrand Junction, COGrid DM59sb26 repeaters within 50 mi
🔒 Not available — currently licensed, through Jan 13, 2028. If it isn't renewed, it opens for vanity requests Jan 14, 2030.
📝 W4UDJ has filed vanity applications before — latest filed Dec 26, 2017 · what was requested
Currently held by MARTHA A BROWN
· 2 holders on record
Current holder: MARTHA A BROWN
Held W4UDJ Jan 13, 2018 → present
· first licensed Aug 16, 1988 as WA7NXV
· 2 licenses · FRN 0017744004 📖 In the printed callbooks since 1971 as WA7NXV, before the FCC's online records
W4UDJActiveGeneral · vanityJan 13, 2018 → expires Jan 13, 2028
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 17, 2003 · 10 discs WA7NXV
· Technician Plus · issued Sep 24, 1998, expires Jun 15, 2008
MARTHA A. BROWN
PO BOX 911, ENUMCLAW, WA 98022-0911
Seen Oct 31, 1994 → Mar 9, 1998 · 7 discs WA7NXV
· Technician Plus · issued Aug 16, 1988, expires Aug 16, 1998
MARTHA A BROWN
46631 244TH AVE SE, ENUMCLAW, WA 98022
Seen Sep 9, 1993 → May 3, 1994 · 2 discs WA7NXV
· Technician · issued Aug 16, 1988, expires Aug 16, 1998
MARTHA A BROWN
46631 244TH AVE SE, ENUMCLAW, WA 98022
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen May 27, 2010 → Oct 11, 2026 · 66 snapshots · as WA7NXV
MARTHA A BROWN
539 TECO STREET, GRAND JUNCTION, CO 81504
Held W4UDJ Oct 27, 1987 → Jun 24, 2001
· first licensed Oct 27, 1987 as W4UDJ
· 1 license · no FRN on file (pre-2001 records)
📖 In the printed callbooks since 1963 as W4UDJ, before the FCC's online records
W4UDJCanceledAdvancedOct 27, 1987 → Jun 24, 2001 (canceled)
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 Mar 9, 1998 → Apr 13, 2001 · 7 discs W4UDJ
· Advanced · issued Jun 17, 1997, expires Jun 17, 2007
LOUIS F. HEERTEN
5212 COURT P, BIRMINGHAM, AL 35208
Seen Sep 9, 1993 → Apr 4, 1997 · 8 discs W4UDJ
· Advanced · issued Oct 27, 1987, expires Oct 27, 1997
LOUIS F HEERTEN
5212 COURT P, BIRMINGHAM, AL 35208
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen Nov 7, 2004 → Oct 11, 2026 · 49 snapshots · as W4UDJ
LOUIS F HEERTEN
5212 COURT P, BIRMINGHAM, AL 35208
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 → 1997 · 2 editions W4UDJ · class A
Louis F Heerten 5111 Court P, Oirmingham, AL 35108 1995 p.842, 1997 p.870
1987 → 1994 · 2 editions W4UDJ · class A
Louis F Heerten 5212 Court P, Birmingham, AL 35208 Winter 1987 p.579, 1994 p.759
1986 · 1 edition W4UDJ · class A
Louis F Heerten 5111 Court P, Birmingham, AL 35108 Winter 1986 p.571
1985 · 1 edition W4UDJ · class A
Louis F Heerten 5212 Court P, Birmingham, AL 35208 Winter 1985 p.571
1984 · 1 edition W4UDJ · class A
Louis F Heerten S111 Court P, Birmingham, AL 35108 Winter 1984 p.568
1976 → 1982 · 7 editions W4UDJ · class A
Louis F Heerten 5212 Court P, Birmingham 35208 A L Winter 1976 p.306, Winter 1977 p.329, Winter 1978 p.449, Winter 1979 p.485, Winter 1980 p.513, 1981 p.449, Winter 1982 p.531
1975 · 1 edition W4UDJ · class A
Louis F Heerten 52i2 Court P, Birmingham 35208 Al Winter 1975 p.299
1970 → 1974 · 6 editions W4UDJ · class A
Louis F .. ~eerten 5212 Court-P, Birmingham 8 Al Spring 1970 p.300, Winter 1971 p.296, Fall 1971 p.298, Winter 1972 p.298, Winter 1973 p.298, 1974 p.273
1969 · 1 edition W4UDJ · class A
L O U I S F . H E E R T E N 5212 C O U R T - P, Birmingham 8 Al Summer 1969 p.295
1963 → 1965 · 3 editions W4UDJ
Louis F. Heerten 5212 Court-P, Birmingham 8 Ala Summer 1963 p.285, Fall 1964 p.269, Summer 1965 p.270
1962 · 1 edition W4UDJ
Louis F. H E E R T E N T 5212 Court - P T Birmingham Ala Fall 1962 p.272
1961 · 1 edition W4UDJ
Lenett J. Mewborn13660 Kimball Av Memphis 11 Tenn Fall 1961 p.281
None · 1 edition W4UDJ · class A
Louis F Heerten 5212 Court P, Birmingham None p.273
Vanity Applications Filed by W4UDJ
Calls this licensee has asked the FCC for, newest first, in their order of preference. The FCC processes applications 18 days after filing; "likely award" is our estimate from every pending application in filing order.
No APRS positions, PSK Reporter reports or WSPR spots for W4UDJ in the last 24 hours. They show up here within seconds of W4UDJ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.