N9TPB
FCC License Search
🕒 FCC license data updated yesterday 7:15 am CDT (FCC files through Oct 12, 2026) · next update today 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)KO6LHZ HAM
⏳ Not available yet — opens for vanity requests Jul 29, 2028, two years after the license was canceled (Jul 28, 2026).
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
Previous holder: Changbum Yoo
Held KO6LHZ Nov 26, 2025 → Jul 28, 2026 · first licensed Jun 6, 2003 as KG6RGG · 4 licenses · FRN 0009078916
-
- Licensee
- Changbum Yoo
- Address
- 16560 Harbor Blvd Ste i
Fountain Valley, CA 92708
- FRN
- 0009078916
- Previous call
- KO6LHZ (Technician)
- Last granted
- Jul 28, 2026
- Effective
- Jul 28, 2026
- Last action
- Jul 28, 2026
FCC actions (2)
- Jul 28, 2026 — Vanity call sign granted VANGRT
- Jul 28, 2026 — License issued LIISS
-
📦 Moved: Buena Park, CA → Fountain Valley, CA
- Licensee
- Changbum Yoo
- Address
- 16560 Harbor Blvd Ste i
Fountain Valley, CA 92708
- FRN
- 0009078916
- Last granted
- Nov 26, 2025
- Effective
- Dec 4, 2025
- Last action
- Jul 28, 2026
FCC actions (5)
- Jul 28, 2026 — License canceled LICAN
- Dec 4, 2025 — License modified LIMOD
- Dec 2, 2025 — Administrative update LIAUA
- Nov 26, 2025 — License issued LIISS
- Nov 26, 2025 — Systematic call sign granted SYSGRT
-
- Licensee
- Changbum Yoo
- Address
- 7015 El Dorado Dr A
Buena Park, CA 90620
- FRN
- 0009078916
- Previous call
- KG6RGG
- Last granted
- Jul 9, 2003
- Effective
- Jul 9, 2003
- Last action
- Jul 10, 2015
FCC actions (3)
- Jul 10, 2015 — License expired LIEXP
- Jul 9, 2003 — Vanity call sign granted VANGRT
- Jul 9, 2003 — License issued LIISS
-
- Licensee
- Changbum Yoo
- Address
- 7015 El Dorado Dr A
Buena Park, CA 90620
- FRN
- 0009078916
- Last granted
- Jun 6, 2003
- Effective
- Jun 6, 2003
- Last action
- Jul 9, 2003
FCC actions (2)
- Jul 9, 2003 — License canceled LICAN
- Jun 6, 2003 — License issued LIISS
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
📡 On the Air: APRS, Digital & WSPR Spots
No APRS positions, PSK Reporter reports or WSPR spots for KO6LHZ in the last 24 hours. They show up here within seconds of KO6LHZ beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.