🕒 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)
W7HRF HAM
General classlicensed since 2019 (7 yrs)W7HRF since 2019 · previously KJ7GRRRigby, IDGrid DN43bpLoTW user27 repeaters within 50 mi
🔒 Not available — currently licensed, through Jun 18, 2029. If it isn't renewed, it opens for vanity requests Jun 19, 2031.
Held W7HRF Apr 22, 1986 → May 29, 2016
· first licensed Apr 22, 1986 as W7HRF
· 1 license · FRN 0015040983 📖 In the printed callbooks since 1958 as W7HRF, before the FCC's online records
W7HRFExpiredAdvancedApr 22, 1986 → May 29, 2016 (expired)
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 27, 1996 → Apr 17, 2003 · 13 discs W7HRF
· Advanced · issued May 29, 1996, expires May 29, 2006
GRANT C. DUFFIN
918 GOLDEN WEST DR, KATY, TX 77450
Seen Sep 9, 1993 → Apr 21, 1996 · 6 discs W7HRF
· Advanced · issued Apr 22, 1986, expires Apr 22, 1996
GRANT C DUFFIN
4004 MERCURY DR, SALT LAKE CITY, UT 84117
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
Seen May 27, 2010 → Oct 4, 2026 · 47 snapshots · as W7HRF
GRANT C DUFFIN
5235 GLENDON ST, APT S-2, MURRAY, UT 84123
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.
1990 → 1995 · 4 editions W7HRF · class A
Grant C Duffin 4004 Mercury Or, Salt Lake C~, UT 84117 Winter 1990 p.1012, 1992 p.1140, 1994 p.1307, Winter 1995 p.1401
1989 · 1 edition W7HRF · class A
Grant C Duffin 4004 Mercul)' Dr, Salt Lake City, UT 84117 Winter 1989 p.998
1988 · 1 edition W7HRF · class A
Grant C Duffin 4004 Mercury Dr, Salt Lake City, UT 84117 Winter 1988 p.982
1987 · 1 edition W7HRF · class A
Grant C Duffin 4004 Mercury Or, Salt Lake City, UT 84117 Winter 1987 p.951
1986 · 1 edition W7HRF · class A
Grant C Duffin 4004 Mercury Dr, Salt Lake City, UT 84117 Winter 1986 p.939
1985 · 1 edition W7HRF · class A
Grant C Duffin 4004 Mercury Or, Salt Lake City, UT 84117 Winter 1985 p.938
1982 · 1 edition W7HRF · class A
Grant C Duffin 4004 Mercury Dr, Salt Lake City, UT 84117 Winter 1982 p.872
1980 → 1981 · 2 editions W7HRF · class A
Grant C Duffin 1345 Emerson Av, Salt Lake City, UT 84105 Winter 1980 p.833, 1981 p.772
1979 · 1 edition W7HRF · class A
Grant C Duffu) 1345 Emerson Av, Salt Lake City Ut 84t05 Winter 1979 p.271
1973 → 1977 · 5 editions W7HRF · class A
Grant C Duffin 1345 Emerson, Salt Lake City 84105 Ut Winter 1973 p.471, 1974 p.441, Winter 1975 p.466, Winter 1976 p.478, Winter 1977 p.522
1971 · 1 edition W7HRF · class A
Grant C Duffin 1155 1st Av, Salt Lake C 84103 Ut Fall 1971 p.467
1968 · 1 edition W7HRF · class G
Grant C. Duffin 123 -L -S T, Salt Lake City Ut Spring 1968 p.473
1966 · 1 edition W7HRF
G'.1:anfc. Spring 1966 p.423
1965 · 1 edition W7HRF
Grant Ce Duffin 123 -L-St, Salt Lake City Utah Summer 1965 p.420
1961 → 1962 · 2 editions W7HRF
Grant C. Duffin. Aberdeen Idaho Fall 1961 p.437, Fall 1962 p.419
1960 · 1 edition W7HRF
Grant C. Ouffin Aberdeen Idaho Winter 1960 p.419
1959 · 1 edition W7HRF
Grant C. Duffin. Aberdeen Spring 1959 p.366
None → 1958 · 2 editions W7HRF · class A
Grant C Duffin 4004 Mercury Dr, Salt Lake City None p.821, Summer 1958 p.355
None · 1 edition W7HRF · class A
Grant C Duffin 1345 Emerson, Salt Lake City None p.441
Vanity Applications Filed by W7HRF
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 W7HRF in the last 24 hours. They show up here within seconds of W7HRF beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.
● confirmed on the air · ● probably · ● reported off the air · ● unknown · ◉ this license · ring = 50 miles · center is the ZIP code (approximate) · click a dot for the repeater's page
● confirmed on the air · ● probably · ● reported off the air · no dot = unknown (hover a dot for the evidence)