N9TPB
FCC License Search
🕒 FCC license data updated today 7:15 am CDT (FCC files through Oct 4, 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, WIKG4KTH HAM
✅ Available for a vanity request — free since Jan 17, 2003.
2x3 call: any licensee 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 Jan 17, 2003
Previous holder: William R Frost
Held KG4KTH May 30, 1995 → Jan 16, 2001 · first licensed May 30, 1995 as N9EYB · 5 licenses · FRN 0002987089
-
- Licensee
- William R Frost
- Address
- 3005 Holbrook Dr
Knoxville, TN 37918
- FRN
- 0002987089
- Previous call
- AH6RC (General)
- Last granted
- Mar 3, 2016
- Effective
- Mar 3, 2016
- Last action
- Mar 3, 2016
FCC actions (4)
- Mar 3, 2016 — License renewed LIREN
- Sep 22, 2011 — Administrative update LIAUA
- May 30, 2006 — Systematic call sign granted SYSGRT
- May 30, 2006 — License issued LIISS
-
📦 Moved: Honolulu, HI → Knoxville, TN
- Licensee
- William R Frost
- Address
- 133001 Holbrook Dr
Knoxville, TN 37918
- FRN
- 0002987089
- Previous call
- AG4FH (General)
- Last granted
- May 30, 1995
- Effective
- Oct 26, 2001
- Last action
- May 30, 2006
FCC actions (4)
- May 30, 2006 — License renewed LIREN
- May 30, 2006 — License canceled LICAN
- Oct 26, 2001 — Systematic call sign granted SYSGRT
- Oct 26, 2001 — License issued LIISS
-
📦 Moved: Woodbridge, VA → Honolulu, HI
- Licensee
- William R Frost
- Address
- 1331 Parks Pl
Honolulu, HI 96819
- FRN
- 0002987089
- Previous call
- KG4KTH (General)
- Last granted
- May 30, 1995
- Effective
- Aug 21, 2001
- Last action
- Oct 26, 2001
FCC actions (3)
- Oct 26, 2001 — License canceled LICAN
- Aug 21, 2001 — Administrative update LIAUA
- Jan 16, 2001 — License issued LIISS
-
- Licensee
- WILLIAM R FROST
- Address
- 13934 REXBURG CT
WOODBRIDGE, VA 22193
- FRN
- 0002987089
- Previous call
- N9EYB (General)
- Last granted
- May 30, 1995
- Effective
- Dec 9, 2000
- Last action
- Jan 16, 2001
FCC actions (2)
- Jan 16, 2001 — License canceled LICAN
- Dec 9, 2000 — License issued LIISS
-
- Licensee
- WILLIAM R FROST
- Address
- 13934 REXBURG CT
WOODBRIDGE, VA 22193
- FRN
- 0002987089
- Last granted
- May 30, 1995
- Effective
- Nov 28, 2000
- Last action
- Dec 9, 2000
FCC actions (2)
- Dec 9, 2000 — License canceled LICAN
- Nov 28, 2000 — Administrative update LIAUA
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Oct 17, 2011 → Oct 4, 2026 · 46 snapshots · as AI4PY
William R Frost
3005 Holbrook Dr, Knoxville, TN 37918 - Seen May 27, 2010 → Oct 4, 2026 · 48 snapshots · as AH6RC
William R Frost
133001 Holbrook Dr, Knoxville, TN 37918 - Seen Nov 7, 2004 → Oct 4, 2026 · 49 snapshots · as AG4FH
William R Frost
1331 Parks Pl, Honolulu, HI 96819 - Seen Nov 7, 2004 → Oct 4, 2026 · 96 snapshots · as N9EYB
WILLIAM R FROST
13934 REXBURG CT, WOODBRIDGE, VA 22193
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for KG4KTH in the last 24 hours. They show up here within seconds of KG4KTH beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.