203.154.21.0/24

AS4618 · Internet Thailand Company Limited

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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 2026-03-18
mnt-by:         MAINT-TH-INET
last-modified:  2026-03-18T07:00:20Z
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 2026-03-18
abuse-mailbox:  op-network@inet.co.th
mnt-by:         APNIC-ABUSE
last-modified:  2026-03-18T07:00:37Z
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	AS132063	Internet Thailand Company Limited	65,536
203.154.0.0/16	AS4618	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
203.154.111.0/24	AS4618	INET Branch	256
203.154.108.0/24	AS4618	INET Branch	256
203.154.18.0/24	AS4618	Bangkok Synthetics Co.,Ltd.	256
203.154.91.0/24	AS4618	Openland scape Company Limited	256
203.154.235.0/24	AS4618	Customer of INET	256
203.154.4.0/24	AS4618	INET CMI Branch	256
203.154.123.0/24	AS4618	Openland scape Company Limited	256
203.154.7.0/24	AS4618	Internet Thailand Public Company Limited (Chiang Mai Branch)	256
203.154.48.0/24	AS4618	Customer of INET	256
203.154.135.0/24	AS4618	Openland scape Company Limited	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
203.154.21.135	hr-tns.com	1
203.154.21.250	ruaysure.com	1
203.154.21.171	etraining-obec.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

70 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
77.164.75.56	AS1136 KPN B.V.	`1.57ms` from Amsterdam, NL
98.24.245.40	AS11426 Charter Communications Inc	`12.88ms` from Charlotte, US
222.179.38.168	AS4134 CHINANET-BACKBONE	`2.23ms` from Chongqing, CN
139.186.39.88	AS45090 Shenzhen Tencent Computer Systems Company Limited	`0.18ms` from Chongqing, CN
98.36.180.248	AS7922 Comcast Cable Communications, LLC	`7.47ms` from Fremont, US
124.234.205.104	AS4134 CHINANET-BACKBONE	`9.25ms` from Harbin, CN
139.94.114.200	AS397412 TACHUS INFRASTRUCTURE LLC	`1.09ms` from Houston, US
106.61.0.200	AS4134 CHINANET-BACKBONE	`0.43ms` from Kunming, CN
20.204.35.168	AS8075 Microsoft Corporation	`0.17ms` from Lohogaon, IN
88.138.210.56	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`8.01ms` from Lyon, FR
83.50.144.200	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.41ms` from Madrid, ES
93.236.98.120	AS3320 Deutsche Telekom AG	`6.21ms` from Nuernberg, DE
187.37.228.200	AS28573 Claro NXT Telecomunicacoes Ltda	`2.14ms` from Osasco, BR
182.170.149.216	AS2527 Sony Network Communications Inc.	`6.86ms` from Tokyo, JP
24.131.17.40	AS7922 Comcast Cable Communications, LLC	`12.06ms` from Ashburn, US
94.71.44.168	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`5.04ms` from Athens, GR
34.208.179.136	AS16509 Amazon.com, Inc.	`0.14ms` from Boardman, US
24.34.5.104	AS7922 Comcast Cable Communications, LLC	`5.28ms` from Boston, US
75.210.230.152	AS6167 Verizon Business	`10.17ms` from Chicago, US
52.237.138.200	AS8075 Microsoft Corporation	`0.46ms` from Chicago, US
218.92.1.136	AS4134 CHINANET-BACKBONE	`7.42ms` from Huai'an, CN
114.71.105.232	AS55616 DGIST	`4.52ms` from Incheon, KR
184.182.107.104	AS22773 Cox Communications Inc.	`9.11ms` from Los Angeles, US
88.20.66.168	AS3352 TELEFONICA DE ESPANA S.A.U.	`9.18ms` from Madrid, ES
185.63.191.168	AS29182 JSC IOT	`0.37ms` from Moscow, RU

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 0.368 ms

2 [] 203.159.68.115 1.467 ms

3 [AS4618] 203.154.21.62 1.36 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On March 28th 2026

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.

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