N9TPB
FCC License Search
🕒 FCC license data updated yesterday 8:30 am CDT (FCC files through Oct 1, 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, WIWB0ROK HAM
✅ Available for a vanity request — free since Jan 20, 2018.
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 20, 2018
Previous holder: Seung Cho
Held WB0ROK Jun 23, 2015 → Jan 19, 2016 · first licensed Mar 23, 2004 as KE5ATF · 9 licenses · FRN 0010621530
-
📦 Moved: Denver, CO → Suwanee, GA
- Licensee
- Seung Cho
- Address
- Attn: Seung Cho
8250 Harlond Way
Suwanee, GA 30024
- FRN
- 0010621530
- Previous call
- WB0ROK (Technician)
- Last granted
- Jul 28, 2026
- Effective
- Jul 28, 2026
- Last action
- Jul 28, 2026
FCC actions (7)
- Jul 28, 2026 — License renewed LIREN
- May 15, 2021 — Administrative update LIAUA
- Aug 5, 2020 — Administrative update LIAUA
- Aug 4, 2020 — Administrative update LIAUA
- Sep 14, 2016 — Administrative update LIAUA
- Jan 19, 2016 — Vanity call sign granted VANGRT
- Jan 19, 2016 — License issued LIISS
-
- Licensee
- Seung Cho
- Address
- PO Box 371051
Denver, CO 80237
- FRN
- 0010621530
- Previous call
- KE0ETW (Technician)
- Last granted
- Jun 23, 2015
- Effective
- Jun 23, 2015
- Last action
- Jan 19, 2016
FCC actions (3)
- Jan 19, 2016 — License canceled LICAN
- Jun 23, 2015 — Vanity call sign granted VANGRT
- Jun 23, 2015 — License issued LIISS
-
- Licensee
- SEUNG CHO
- Address
- PO Box 371051
DENVER, CO 80237
- FRN
- 0010621530
- Previous call
- WB6KEN (Technician)
- Last granted
- Oct 7, 2014
- Effective
- Jun 18, 2015
- Last action
- Jun 23, 2015
FCC actions (4)
- Jun 23, 2015 — License canceled LICAN
- Jun 18, 2015 — License modified LIMOD
- Jun 3, 2015 — Systematic call sign granted SYSGRT
- Jun 3, 2015 — License issued LIISS
-
📦 Moved: San Mateo, CA → Denver, CO
- Licensee
- Seung Cho
- Address
- PO Box 371051
Denver, CO 80237
- FRN
- 0010621530
- Previous call
- KK6OYL
- Last granted
- Oct 7, 2014
- Effective
- Jun 2, 2015
- Last action
- Jun 3, 2015
FCC actions (4)
- Jun 3, 2015 — License canceled LICAN
- Jun 2, 2015 — Administrative update LIAUA
- Oct 7, 2014 — Vanity call sign granted VANGRT
- Oct 7, 2014 — License issued LIISS
-
📦 Moved: Santa Clara, CA → San Mateo, CA
- Licensee
- Seung Cho
- Address
- PO Box 146
San Mateo, CA 94401
- FRN
- 0010621530
- Last granted
- Sep 18, 2014
- Effective
- Sep 18, 2014
- Last action
- Oct 7, 2014
FCC actions (3)
- Oct 7, 2014 — License canceled LICAN
- Sep 18, 2014 — License issued LIISS
- Sep 18, 2014 — Systematic call sign granted SYSGRT
-
- Licensee
- Seung Cho
- Address
- PO Box 3146
Santa Clara, CA 95055
- FRN
- 0010621530
- Previous call
- KK6CYF (Technician)
- Last granted
- Apr 5, 2013
- Effective
- May 7, 2014
- Last action
- May 20, 2025
FCC actions (5)
- May 23, 2014 — License canceled LICAN
- May 7, 2014 — Administrative update LIAUA
- May 3, 2014 — Administrative update LIAUA
- Apr 5, 2013 — Vanity call sign granted VANGRT
- Apr 5, 2013 — License issued LIISS
-
- Licensee
- Seung Cho
- Address
- PO Box 3146
Santa Clara, CA 95055-3146
- FRN
- 0010621530
- Previous call
- KF5TTY (Technician)
- Last granted
- Feb 12, 2013
- Effective
- Mar 13, 2013
- Last action
- Apr 5, 2013
FCC actions (3)
- Apr 5, 2013 — License canceled LICAN
- Mar 13, 2013 — Systematic call sign granted SYSGRT
- Mar 13, 2013 — License issued LIISS
-
📦 Moved: Columbus, OH → Santa Clara, CA
- Licensee
- Seung Cho
- Address
- PO Box 3146
Santa Clara, CA 95055-3146
- FRN
- 0010621530
- Last granted
- Feb 12, 2013
- Effective
- Mar 13, 2013
- Last action
- Mar 13, 2013
FCC actions (6)
- Mar 13, 2013 — License canceled LICAN
- Feb 26, 2013 — Administrative update LIAUA
- Feb 26, 2013 — Administrative update LIAUA
- Feb 22, 2013 — Administrative update LIAUA
- Feb 12, 2013 — License issued LIISS
- Feb 12, 2013 — Systematic call sign granted SYSGRT
-
- Licensee
- Seung H Cho
- Address
- Attn: SEUNG W CHO
3952 Charter Oak Way
Columbus, OH 43219
- FRN
- 0010621530
- Last granted
- Mar 23, 2004
- Effective
- Nov 14, 2007
- Last action
- May 7, 2009
FCC actions (6)
- May 7, 2009 — License canceled LICAN
- Nov 14, 2007 — Administrative update LIAUA
- Jun 12, 2007 — Administrative update LIAUA
- May 5, 2006 — Administrative update LIAUA
- May 4, 2004 — License modified LIMOD
- Mar 23, 2004 — License issued LIISS
Address history
From FCC database snapshots (2004 → now). "Seen" dates are the first and last snapshot showing that address.
- Seen Apr 16, 2022 → Sep 27, 2026 · 12 snapshots · as N0AKX
Seung Cho
Attn: Seung Cho
8250 Harlond Way, Suwanee, GA 30024 - Seen Aug 2, 2015 → Sep 27, 2026 · 100 snapshots · as WB6KEN
Seung Cho
PO Box 371051
Denver, CO 80237 - Seen Mar 28, 2015 → Sep 27, 2026 · 38 snapshots · as KK6OYL
Seung Cho
PO Box 146
San Mateo, CA 94401 - Seen Apr 6, 2013 → Sep 27, 2026 · 119 snapshots · as KF5TTY
Seung Cho
PO Box 3146
Santa Clara, CA 95055-3146 - Seen May 27, 2010 → Sep 27, 2026 · 46 snapshots · as KE5ATF
Seung H Cho
Attn: SEUNG W CHO
3952 Charter Oak Way, Columbus, OH 43219 - Seen Nov 4, 2016 → May 6, 2019 · 12 snapshots · as N0AKX
Seung Cho
Attn: Seung Cho
8201 Interport Blvd, Englewood, CO 80112 - Seen Nov 7, 2004 → Feb 18, 2013 · 2 snapshots · as KF5TTY
Seung Cho
34 Las Villas Ave, Brownsville, TX 78526
Others requesting WB0ROK
2 applications listed WB0ROK as a choice, newest first.
| Filed | Award | Applicant | Choice # | Status |
|---|---|---|---|---|
| Jun 5, 2019 | Jun 23, 2019 | KE0VXV · Jeffrey S Alvis · HIGHLANDS RANCH, CO | 3 | Granted |
| Jun 3, 2015 | Jun 21, 2015 | KE0ETW · Seung Cho · Denver, CO | 1 | Granted |
📡 On the air: APRS, digital & WSPR spots
No APRS positions, PSK Reporter reports or WSPR spots for WB0ROK in the last 24 hours. They show up here within seconds of WB0ROK beaconing on APRS, being heard on FT8, FT4 and other digital modes, or sending a WSPR beacon.