203.151.0.0/16

AS4618 · Internet Thailand Company Limited

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Summary

Country	Thailand
Domain	inter.net.th
ASN	AS4618
Registry	APNIC
ID	INET-TH

WHOIS Details

inetnum:        203.151.0.0 - 203.151.255.255
netname:        INET-TH
descr:          Internet Thailand Company Limited
country:        TH
org:            ORG-ITCL3-AP
admin-c:        INR1-AP
tech-c:         INR1-AP
abuse-c:        AI358-AP
status:         ALLOCATED PORTABLE
mnt-by:         APNIC-HM
mnt-lower:      MAINT-TH-INET
mnt-irt:        IRT-INET-TH
last-modified:  2020-11-20T04:03:49Z
source:         APNIC

irt:            IRT-INET-TH
address:        Internet Thailand Public Company Limited
address:        1768 Thai Summit Tower, 10th -12th Floor and IT Floor
address:        New Petchburi Road, Khwaeng Bang Kapi,
address:        Khet Huay Khwang, Bangkok 10310 Thailand
e-mail:         op-network@inet.co.th
abuse-mailbox:  op-network@inet.co.th
admin-c:        TY1494-AP
tech-c:         IP219-AP
auth:           # Filtered
remarks:        op-network@inet.co.th was validated on 2025-09-15
mnt-by:         MAINT-TH-INET
last-modified:  2025-11-17T23:08:36Z
source:         APNIC

organisation:   ORG-ITCL3-AP
org-name:       Internet Thailand Company Ltd.
org-type:       LIR
country:        TH
address:        1768 IFCT Tower, 10th-12th FL
address:        IT Floor New Petchburi Road
address:        Khwaeng Bang Kapi
address:        Khet Huay Khwang
phone:          +662-257-7000
fax-no:         +662-257-7222
e-mail:         noc@inet.co.th
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:14:42Z
source:         APNIC

role:           ABUSE INETTH
country:        ZZ
address:        Internet Thailand Public Company Limited
address:        1768 Thai Summit Tower, 10th -12th Floor and IT Floor
address:        New Petchburi Road, Khwaeng Bang Kapi,
address:        Khet Huay Khwang, Bangkok 10310 Thailand
phone:          +000000000
e-mail:         op-network@inet.co.th
admin-c:        TY1494-AP
tech-c:         IP219-AP
nic-hdl:        AI358-AP
remarks:        Generated from irt object IRT-INET-TH
remarks:        op-network@inet.co.th was validated on 2025-09-15
abuse-mailbox:  op-network@inet.co.th
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-15T12:43:30Z
source:         APNIC

role:           INET NOC ROLE
address:        1768 Thai Summit Tower, New Petchburi Road
address:        Khet Huay Khwang, Bangkok
address:        Thailand 10310
country:        TH
phone:          +662 02 2577000
fax-no:         +662 02 2577275
e-mail:         noc@inet.co.th
remarks:        send spam and abuse reports to noc@inet.co.th
admin-c:        CN7-AP
tech-c:         AP224-AP
tech-c:         IP219-AP
tech-c:         NL276-AP
nic-hdl:        INR1-AP
remarks:        http://www.inet.co.th
notify:         noc@inet.co.th
mnt-by:         MAINT-TH-INET
last-modified:  2024-09-19T08:38:11Z
source:         APNIC

route:          203.151.208.0/20
origin:         AS4618
descr:          Internet Thailand Company Ltd. 1768 IFCT Tower, 10th-12th FL IT Floor New Petchburi Road Khwaeng Bang Kapi Khet Huay Khwang
mnt-by:         MAINT-TH-INET
last-modified:  2021-06-01T07:31:15Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 203.151.0.0/16

Range	ASN	Company	Num of IPs
203.151.18.0/24	AS23644	Government Savings Bank	256
203.151.25.0/24	AS38184	INET ISDN	256
203.151.11.0/24	AS4618	INET NC Server	256
203.151.115.0/24	AS4618	Inet-Empower #2	256
203.151.51.0/24	AS4618	INET KKN Branch	256
203.151.40.0/24	AS4618	The Federation of Thai Industries	256
203.151.46.0/24	AS4618	Office of the Permanent Secretary	256
203.151.85.0/24	AS4618	INET-TH	256
203.151.178.0/24	AS4618	Internet Thailand Co.,Ltd.(Webhosting Service)	256
203.151.238.0/24	AS4618	Customer of INET	256
203.151.159.0/24	AS55932	The Thai Bond Dealing Centre	256
203.151.39.0/24	AS4618	Khonkaen Internet Co.,Ltd.(Point Of Presence)	256
203.151.147.0/24	AS4618	INET Coporate branch (South)	256
203.151.155.0/24	AS4618	Udomsuksa School	256
203.151.169.0/24	AS4618	Internet Thailand Public Company Limited	256
203.151.20.0/23	AS4618	INET Datacenter net20	512
203.151.232.0/23	AS4618	INET Datacenter net232	512
203.151.44.0/23	AS4618	Co-location Segment	512

Nearby Ranges

BGP prefixes that overlap with 203.0.0.0/8

Range	ASN	Company	Num of IPs
203.40.0.0/13	AS1221	Telstra Limited	524,288
203.48.0.0/14	AS1221	Telstra Limited	262,144
203.36.0.0/14	AS1221	Telstra Limited	262,144
203.52.0.0/15	AS1221	Telstra Limited	131,072
203.102.0.0/15	AS703	Verizon Australia PTY Limited	131,072
203.68.0.0/16	AS1659	Taiwan Academic Network	65,536
203.177.0.0/16	AS17894	Globe Telecom	65,536
203.227.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.74.0.0/16	AS3462	Data Communication Business Group,	65,536
203.225.0.0/16	AS4766	KOLON BENIT	65,536
203.177.0.0/16	AS4775	Globe Telecom	65,536
203.73.0.0/16	AS4780	Digital United Inc.	65,536
203.219.0.0/16	AS7545	TPG Internet Pty Ltd.	65,536
203.157.0.0/16	AS9649	Ministry of Public Health, Thailand	65,536
203.182.0.0/16	AS4673	NTT DATA CORPORATION	65,536
203.197.0.0/16	AS4755	Internet Service Provider	65,536
203.218.0.0/16	AS4760	PCCW Limited	65,536
203.70.0.0/16	AS4780	Digital United Inc.	65,536
203.67.0.0/16	AS4780	Digital United Inc.	65,536
203.155.0.0/16	AS23644	KSC Commercial Internet Co. Ltd.	65,536
203.155.0.0/16	AS55844	KSC Commercial Internet Co. Ltd.	65,536
203.206.0.0/16	AS7545	iiNet Limited	65,536
203.224.0.0/16	AS9273	ITCENENTEC CO.,LTD.	65,536
203.85.0.0/16	AS4058	CITIC Telecom International CPC Limited	65,536
203.75.0.0/16	AS3462	Data Communication Business Group,	65,536
203.125.0.0/16	AS3758	SingNet Pte Ltd	65,536
203.231.0.0/16	AS3608	SEJONG NETWORKS	65,536
203.155.0.0/16	AS17478	KSC Commercial Internet Co. Ltd.	65,536
203.206.0.0/16	AS4739	iiNet Limited	65,536
203.59.0.0/16	AS4739	iiNet Limited	65,536
203.69.0.0/16	AS137280	Data Communication Business Group,	65,536
203.200.0.0/16	AS4755	Internet Service Provider	65,536
203.108.0.0/16	AS703	OzEmail Pty Ltd	65,536
203.154.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.155.0.0/16	AS135620	KSC Commercial Internet Co. Ltd.	65,536
203.177.0.0/16	AS132199	Globe Telecom	65,536
203.231.0.0/16	AS9973	SEJONG NETWORKS	65,536
203.227.0.0/16	AS23584	SEJONG NETWORKS	65,536
203.231.0.0/16	AS23593	SEJONG NETWORKS	65,536
203.69.0.0/16	AS3462	Data Communication Business Group,	65,536
203.177.0.0/16	AS24179	Globe Telecom	65,536
203.177.0.0/16	AS132595	Globe Telecom	65,536
203.66.0.0/16	AS3462	Data Communication Business Group,	65,536
203.61.0.0/16	AS703	Verizon Australia PTY Limited	65,536
203.64.0.0/16	AS1659	Taiwan Academic Network	65,536
203.59.0.0/16	AS7545	iiNet Limited	65,536
203.200.0.0/16	AS40009	Internet Service Provider	65,536
203.162.0.0/16	AS7643	Vietnam Posts and Telecommunications Group	65,536

Hosted domains

There are 3,927 domain names hosted across 580 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.

Useful for Cybersecurity

Read more

Pingable IPs

6,390 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
203.151.224.1	AS4618 Internet Thailand Company Limited	`0.53ms` from Bangkok, TH
203.151.204.190	AS4618 Internet Thailand Company Limited	`0.53ms` from Bangkok, TH
203.151.221.254	AS4618 Internet Thailand Company Limited	`0.87ms` from Bangkok, TH
203.151.189.254	AS4618 Internet Thailand Company Limited	`0.49ms` from Bangkok, TH
203.151.164.187	AS4618 Internet Thailand Company Limited	`0.46ms` from Bangkok, TH
203.151.240.225	AS4618 Internet Thailand Company Limited	`0.49ms` from Bangkok, TH
203.151.124.124	AS4618 Internet Thailand Company Limited	`0.53ms` from Bangkok, TH
203.151.242.253	AS4618 Internet Thailand Company Limited	`0.86ms` from Bangkok, TH
203.151.228.28	AS4618 Internet Thailand Company Limited	`0.76ms` from Bangkok, TH
203.151.182.124	AS4618 Internet Thailand Company Limited	`0.78ms` from Bangkok, TH
203.151.220.254	AS4618 Internet Thailand Company Limited	`0.64ms` from Bangkok, TH
203.151.131.49	AS4618 Internet Thailand Company Limited	`0.79ms` from Bangkok, TH
203.151.115.183	AS4618 Internet Thailand Company Limited	`2.84ms` from Bangkok, TH
203.151.250.252	AS4618 Internet Thailand Company Limited	`0.87ms` from Bangkok, TH
203.151.222.44	AS4618 Internet Thailand Company Limited	`0.46ms` from Bangkok, TH
203.151.141.209	AS4618 Internet Thailand Company Limited	`1.55ms` from Bangkok, TH
203.151.126.217	AS4618 Internet Thailand Company Limited	`3.04ms` from Bangkok, TH
203.151.116.29	AS4618 Internet Thailand Company Limited	`0.72ms` from Bangkok, TH
203.151.225.82	AS4618 Internet Thailand Company Limited	`0.55ms` from Bangkok, TH
203.151.96.254	AS4618 Internet Thailand Company Limited	`0.51ms` from Bangkok, TH
203.151.153.252	AS4618 Internet Thailand Company Limited	`1.43ms` from Bangkok, TH
203.151.237.254	AS4618 Internet Thailand Company Limited	`2.79ms` from Bangkok, TH
203.151.94.26	AS4618 Internet Thailand Company Limited	`0.52ms` from Bangkok, TH
203.151.85.127	AS4618 Internet Thailand Company Limited	`0.47ms` from Bangkok, TH
203.151.249.140	AS4618 Internet Thailand Company Limited	`0.55ms` from Bangkok, TH

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
70.159.21.80	AS6389 AT&T Enterprises, LLC	`2.29ms` from Ashburn, US
71.61.120.48	AS7922 Comcast Cable Communications, LLC	`10.29ms` from Ashburn, US
91.219.85.0	AS197112 jacsa.NET Kft.	`1.86ms` from Budapest, HU
222.163.220.160	AS4837 CHINA UNICOM China169 Backbone	`6.46ms` from Changchun, CN
23.56.253.48	AS16625 Akamai Technologies, Inc.	`0.35ms` from Frankfurt am Main, DE
86.114.35.160	AS1759 Telia Finland Oyj	`3.63ms` from Helsinki, FI
36.95.137.32	AS7713 PT Telekomunikasi Indonesia	`0.67ms` from Jakarta, ID
90.206.3.176	AS5607 Sky UK Limited	`7.17ms` from London, GB
2.118.12.48	AS3269 Telecom Italia S.p.A.	`10.60ms` from Milan, IT
96.118.18.208	AS7922 Comcast Cable Communications, LLC	`3.91ms` from Seattle, US
135.171.234.80	AS8075 Microsoft Corporation	`0.27ms` from Singapore, SG
196.186.104.144	AS327934 SOCIETE NATIONALE DES TELECOMMUNICATIONS (Tunisie Telecom)	`17.84ms` from Tunis, TN
186.57.246.96	AS22927 Telefonica de Argentina	`2.21ms` from Buenos Aires, AR
113.184.221.192	AS45899 VNPT Corp	`2.68ms` from Da Nang, VN
3.78.145.224	AS16509 Amazon.com, Inc.	`0.17ms` from Frankfurt am Main, DE
87.183.116.224	AS3320 Deutsche Telekom AG	`8.74ms` from Frankfurt am Main, DE
187.144.250.224	AS8151 UNINET	`6.92ms` from Guadalajara, MX
116.103.170.16	AS24086 Viettel Corporation	`13.39ms` from Ho Chi Minh City, VN
89.197.70.64	AS47474 Virtual1 Limited	`1.17ms` from London, GB
62.173.139.96	AS34300 Internet-Cosmos LLC	`0.96ms` from Moscow, RU
98.240.97.160	AS7922 Comcast Cable Communications, LLC	`8.04ms` from Murfreesboro, US
201.23.51.0	AS272710 FIBRASIL INFRAESTRUTURA E FIBRA OTICA S.A.	`0.22ms` from Osasco, BR
190.241.139.0	AS11830 Instituto Costarricense de Electricidad y Telecom.	`2.65ms` from San Jose, CR
131.108.146.240	AS61690 Central das Cooperativas de Credito do Estado do P	`8.92ms` from Sao Paulo, BR
171.11.23.80	AS4134 CHINANET-BACKBONE	`3.33ms` from Zhengzhou, CN

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 203.151.25.2

traceroute to 203.151.25.2 (203.151.25.2): 64 hops max, 52 byte packets

3 [AS64050] 61.19.60.69 0.709 ms

4 [AS4618] 203.150.222.250 0.606 ms

5 [AS38184] 203.151.25.2 12.341 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On February 7th 2026

What are IP address ranges?

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Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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