Data as of Nov 14, 2026
203.133.9.0/28
No anonymizer space · no proxy exits in 30 daysHoshin Multimedia Center Inc. · space held by KBT Co., LTD
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 203.133.0.0/17 since May 2005 | AS9416 | Residential | 1 |
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203.133.0.0/19 | 8,192 | KBT-NET | KBT Co., LTD | ALLOCATED PORTABLE | Sep 4, 2008 | jacky. |
| └ 203.133.9.0/28 | 16 | GIGACTN | The first international Chinese | ASSIGNED NON-PORTABLE | — | hostmaster@ |
Network & registry
Announced by
Covering announcement 203.133.9.0/24
- Prefix
- 203.133.9.0/24
- Announced by
- AS9416 Hoshin Multimedia Center Inc.
- Type
- Residential
- RPKI
- RPKI valid
- Netname
- KBT-NET
- Registrant
- KBT Co., LTD
- RIR
- APNIC
Origin network
AS9416
TW
- Name
- Hoshin Multimedia Center Inc.
- Type
- Internet provider
- Registered
- Sep 28, 1998
- Domain
- homeplus.net.tw
- Website
- www.homeplus.net.tw/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
203.133.9.0/24
Routing history
- Pattern
- Stable
- First seen
- Feb 2011
- Current origin since
- Jun 2019 · 7.4 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.133.0.0/18 | AS9416 | /24 | APNIC | RPKI valid |
| 203.133.0.0/17 | AS18042 | /24 | APNIC | Another network |
| 203.133.0.0/17 | AS9416 | /17 | APNIC | Too specific |
Whois
Registration for this announcement
- Range
- 203.
133. 0. 0/ 19 - Netname
- KBT-NET
- Registrant
- KBT Co., LTD
- Registrant country
- TW
- Organization
- KBT Co., LTD
- Org country
- TW
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Jun 18, 2026
- Maintainer
- MAINT-TW-TWNIC
- RIR
- APNIC
- Country
- TW
- Delegated
- Oct 26, 1998
- Status
- assigned
Report abuse
Abuse contact
- jacky.
ni@ homeplus. net. tw - Name
- TWNIC ROLE-KBT
- Handle
- TR423-AP