Data as of Nov 14, 2026
203.151.0.0/19
No anonymizer space · no proxy exits in 30 daysInternet Thailand Company Limited · space held by Internet Thailand Company Ltd.
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.151.0.0/16 since May 2005 | AS4618 | Hosting | 6 1 always on | Internet Thailand Company Ltd. |
Nesting
More-specifics by size
Sized by addresses, colored by each announcement's type. Click a tile with children to zoom in, a leaf to open it.
More specific
Announcements inside
| Prefix | Origin | Type | Holder | RPKI |
|---|---|---|---|---|
| 203.151.0.0/20 since Jan 2026 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.0.0/24 since Mar 2025 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.1.0/24 since Jun 2014 | AS133529 | Business | Internet Thailand Company Ltd. | |
| 203.151.3.0/24 since Mar 2025 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.6.0/24 since Sep 2026 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.10.0/24 since Sep 2024 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.11.0/24 since Sep 2024 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.16.0/20 since Jan 2026 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.18.0/24 since Apr 2018 | AS23644 | Unknown | Internet Thailand Company Ltd. via Government Savings Bank | |
| 203.151.19.0/24 since Jan 2019 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.20.0/23 since Dec 2013 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.22.0/24 since Dec 2013 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.23.0/24 since Oct 2012 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.25.0/24 since Jun 2018 | AS38184 | Unknown | Internet Thailand Company Ltd. | |
| 203.151.26.0/24 since Feb 2019 | AS4618 | Hosting | Internet Thailand Company Ltd. | |
| 203.151.27.0/24 since Jul 2014 | AS4618 | Hosting | Internet Thailand Company Ltd. |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 203.151.0.0/16 | 65,536 | INET-TH | Internet Thailand Company Ltd. (ORG-ITCL3-AP) · TH | ALLOCATED PORTABLE | — | op-network@ |
| └ 203.151.0.0/27 | 32 | BPE-TH | Bangkok Polyethylene Public Company Limited | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.2.0/24 | 256 | BPE-TH | Bangkok Polyethylene Public Company Limited | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.9.0/25 | 128 | OPENCARE-TH | Open Exchange for Collaborative Activities in Response to Emergencies | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.11.0/24 | 256 | INET-TH | INET NC Server | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.12.64/26 | 64 | PIBULONLINE-TH | Rajabhat Institute Pibulsongkram Phitsanulok | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.12.128/27 | 32 | INET-TH | Reserved for K.Trin | ALLOCATED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.12.160/27 | 32 | SAWADEEWEB-TH | Sawadee web | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.15.0/24 | 256 | AEROTHAI-TH | Aeronautical Radio of Thailand | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.17.32/27 | 32 | DSI-TH | Department of Special Investigation | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.17.64/27 | 32 | KLINE-TH | K Line (Thailand) Company Limited | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203. | 17 | KCS-TH | Krung Thai Computer Service Co.,Ltd. | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.18.0/24 | 256 | INET-GSBEX-TH | Government Savings Bank | ALLOCATED NON-PORTABLE | — | op-network@ |
| └ 203.151.20.0/23 | 512 | INET-TH | INET Datacenter net20 | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.22.0/23 | 512 | INET-TH | INET Datacenter net22 | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.25.0/24 | 256 | INET-TH | Inet Isdn | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
| └ 203.151.28.0/22 | 1,024 | INET-TH | Internet Thailand Co., Ltd.(Dial-UP) | ASSIGNED NON-PORTABLE | — | op-network@ via INET-TH |
A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.
Composition
The types across the prefix's announced space, by addresses.
Announced space
Address share
Announced space
Types across the prefix
8,192 addresses
| Type | Addresses | Share | Ranges | |
|---|---|---|---|---|
| Hosting | 7,424 | 91% | 18 | |
| Unknown | 512 | 6.3% | 2 | |
| Business | 256 | 3.1% | 1 |
Network & registry
Origin network
AS4618
TH
- Name
- Internet Thailand Company Limited
- Type
- Hosting
- Registered
- Aug 10, 1995
- Domain
- inet.co.th
- Website
- www.inet.co.th
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 203.151.0.0/19 | AS4618 | /20 | APNIC | RPKI valid |
Whois
Registration for this announcement
- Range
- 203.
151. 0. 0/ 16 - Netname
- INET-TH
- Registrant
- Internet Thailand Company Ltd.
- Registrant country
- TH
- Organization
- Not stated by the registry
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 20, 2020
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- TH
- Delegated
- Jun 12, 1996
- Status
- assigned
Report abuse
Abuse contact
- op-network@
inet. co. th - Name
- ABUSE INETTH
- Handle
- AI358-AP