203.154.21.0/24

AS4618 · Internet Thailand Company Limited

Need more data or want to access it via API or data downloads? Sign up to get free access

Summary

Country	Thailand
Domain	inter.net.th
ASN	AS4618
Parent Range	203.154.0.0/16
Registry	APNIC
ID	INET-TH

WHOIS Details

inetnum:        203.154.0.0 - 203.154.255.255
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:  2025-09-15T12:42:52Z
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

Overlapping Ranges

BGP prefixes that contain 203.154.21.0/24

Range	ASN	Company	Num of IPs
203.154.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.154.0.0/16	AS132063	Internet Thailand Company Limited	65,536

Nearby Ranges

BGP prefixes that overlap with 203.154.0.0/16

Range	ASN	Company	Num of IPs
203.154.0.0/16	AS132063	Internet Thailand Company Limited	65,536
203.154.0.0/16	AS4618	Internet Thailand Company Limited	65,536
203.154.108.0/24	AS4618	INET Branch	256
203.154.111.0/24	AS4618	INET Branch	256
203.154.123.0/24	AS4618	Openland scape Company Limited	256
203.154.135.0/24	AS4618	Openland scape Company Limited	256
203.154.18.0/24	AS4618	Bangkok Synthetics Co.,Ltd.	256
203.154.235.0/24	AS4618	Customer of INET	256
203.154.4.0/24	AS4618	INET CMI Branch	256
203.154.48.0/24	AS4618	Customer of INET	256
203.154.7.0/24	AS4618	Internet Thailand Public Company Limited (Chiang Mai Branch)	256

Hosted domains

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

IP Address	Domain	Domains on this IP
203.154.21.250	ruaysure.com	1

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

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

IP Address	ASN	Details
203.154.21.126	AS4618 Internet Thailand Company Limited	`1.13ms` 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
217.164.35.56	AS5384 Emirates Internet	`4.87ms` from Al Fujairah City, AE
81.205.247.184	AS1136 KPN B.V.	`1.62ms` from Amsterdam, NL
147.52.16.72	AS6867 University of Crete	`9.40ms` from Athens, GR
70.177.147.168	AS22773 Cox Communications Inc.	`6.62ms` from Atlanta, US
52.247.39.184	AS8075 Microsoft Corporation	`0.32ms` from Boydton, US
181.27.28.56	AS22927 Telefonica de Argentina	`4.70ms` from Buenos Aires, AR
104.130.127.136	AS33070 Rackspace Hosting	`0.90ms` from Dallas, US
158.177.128.24	AS36351 IBM Cloud	`1.27ms` from Frankfurt am Main, DE
110.76.32.104	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.40ms` from Hangzhou, CN
146.148.234.24	AS26658 HT	`0.25ms` from Los Angeles, US
35.204.81.152	AS396982 Google LLC	`0.15ms` from Oudeschip, NL
216.92.175.24	AS7859 pair Networks	`0.09ms` from Pittsburgh, US
20.69.142.136	AS8075 Microsoft Corporation	`0.31ms` from Quincy, US
82.213.46.136	AS12975 PALTEL Autonomous System	`16.41ms` from Ramallah, PS
82.140.140.200	AS136787 PacketHub S.A.	`0.09ms` from Seattle, US
39.108.169.216	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`1.68ms` from Shenzhen, CN
74.234.208.136	AS8075 Microsoft Corporation	`0.20ms` from Amsterdam, NL
82.137.49.104	AS8708 DIGI ROMANIA S.A.	`0.88ms` from Bucharest, RO
122.142.220.8	AS4837 CHINA UNICOM China169 Backbone	`4.49ms` from Changchun, CN
221.10.88.168	AS4837 CHINA UNICOM China169 Backbone	`4.53ms` from Chengdu, CN
35.9.1.152	AS231 Michigan State University	`2.85ms` from Detroit, US
14.173.15.200	AS45899 VNPT Corp	`2.45ms` from Ho Chi Minh City, VN
161.132.196.88	AS3132 Red Cientifica Peruana	`0.28ms` from Lima, PE
2.99.118.88	AS13285 TalkTalk Communications Limited	`5.76ms` from London, GB
122.228.79.8	AS134771 WENZHOU, ZHEJIANG Province, P.R.China.	`9.60ms` from Nanchang, CN

Traceroute

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

traceroute -a -n -q1 203.154.21.62

traceroute to 203.154.21.62 (203.154.21.62): 64 hops max, 52 byte packets

1 [AS42473] 217.146.0.38 0.286 ms

2 [] 203.159.68.115 1.477 ms

3 [AS4618] 203.154.21.62 1.699 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On October 25th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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

An API built with users in mind: reliable, accurate, and easy-to-use

Discover why industry-leading companies around the globe love our data. IPinfo's accurate insights fuel use cases from cybersecurity, data enrichment, web personalization, and much more.

Get Started for Free Contact Sales