203.172.40.0/22

AS9891 · CS LOXINFO Public Company Limited.

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Summary

Country	Thailand
Domain	csloxinfo.net
ASN	AS9891
Registry	APNIC
ID	CSLOXINFO-TH

WHOIS Details

inetnum:        203.172.40.0 - 203.172.43.255
netname:        CSLOXINFO-TH
descr:          CS Loxinfo Public Company Limited
descr:          90 CW Tower A, 17-20th floor
descr:          Ratchadapisek Rd, Huai Kwang, Bangkok 10310
country:        TH
org:            ORG-CLPC1-AP
admin-c:        LIA1-AP
tech-c:         LIA1-AP
abuse-c:        AC1613-AP
status:         ALLOCATED PORTABLE
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      LOXINFO-IS
mnt-irt:        IRT-CSLOXINFO-TH
last-modified:  2024-07-18T04:23:56Z
source:         APNIC

irt:            IRT-CSLOXINFO-TH
address:        CW Tower
address:        Ratchadapisek Road, Huai Khwang, Bangkok 10310
phone:          +66 2 2638000
fax-no:         +66 2 2638790
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        LIA1-AP
tech-c:         LIA1-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-09-04
mnt-by:         CSLOXINFO-IS
last-modified:  2025-11-18T10:47:13Z
source:         APNIC

organisation:   ORG-CLPC1-AP
org-name:       CS Loxinfo Public Company Limited
org-type:       LIR
country:        TH
address:        90 CW Tower A 19-20th floor
address:        Ratchadapisek Rd
address:        Huai Kwang
phone:          +66-2263-8000
fax-no:         +66-2263-8790
e-mail:         [email protected]
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2025-06-04T12:55:09Z
source:         APNIC

role:           ABUSE CSLOXINFOTH
country:        ZZ
address:        CW Tower
address:        Ratchadapisek Road, Huai Khwang, Bangkok 10310
phone:          +66 2 2638000
e-mail:         [email protected]
admin-c:        LIA1-AP
tech-c:         LIA1-AP
nic-hdl:        AC1613-AP
remarks:        Generated from irt object IRT-CSLOXINFO-TH
remarks:        [email protected] was validated on 2025-09-04
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-09-04T22:49:47Z
source:         APNIC

role:           Loxinfo IP Admins
remarks:        CS LOXINFO PUBLIC COMPANY LIMITED
address:        CW Tower
address:        Ratchadapisek Road, Huai Khwang, Bangkok 10310
country:        TH
phone:          +66-2263-8000
fax-no:         +66-2263-8790
e-mail:         [email protected]
admin-c:        LIA1-AP
tech-c:         LIA1-AP
nic-hdl:        LIA1-AP
mnt-by:         CSLOXINFO-IS
last-modified:  2026-01-12T02:24:09Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 203.172.0.0/16

Range	ASN	Company	Num of IPs
203.172.128.0/17	AS23974	Ministry of Education - EMISC	32,768
203.172.0.0/19	AS7629	VITRO INC.	8,192
203.172.16.0/20	AS7629	VITRO INC.	4,096
203.172.48.0/22	AS4750	CS Loxinfo Public Company Limited	1,024
203.172.64.0/22	AS4750	CS LoxInfo Public COmpany Limited	1,024
203.172.114.0/23	AS4750	CS LoxInfo Public COmpany Limited	512
203.172.46.0/23	AS4750	CS Loxinfo Public Company Limited	512
203.172.59.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.63.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.89.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.90.0/24	AS45458	Blue Worth_Corporate Internet	256
203.172.91.0/24	AS45458	Blue Worth_Corporate Internet	256
203.172.109.0/24	AS4750	CS LoxInfo Public COmpany Limited	256
203.172.110.0/24	AS4750	CS LoxInfo Public COmpany Limited	256
203.172.116.0/24	AS4750	CS LoxInfo Public COmpany Limited	256
203.172.119.0/24	AS4750	reassign to Loopback for BN at The Cloud	256
203.172.126.0/24	AS4750	reassign to Renaissance Bangkok Hotel Ratchaprasong	256
203.172.36.0/24	AS4750	reassign to Wan IP for Corporate customer(Cloud)	256
203.172.37.0/24	AS4750	reassign to Wan IP for Corporate customer(Cloud)	256
203.172.38.0/24	AS4750	reassign to CSLOXINFO-IDC	256
203.172.39.0/24	AS4750	reassign to WHA INFONITE CO.,Ltd.	256
203.172.45.0/24	AS4750	CS Loxinfo Public Company Limited	256
203.172.51.0/24	AS4750	reassign to Wan IP for Corporate customer(Cloud)(/31)	256
203.172.53.0/24	AS4750	CS Loxinfo Public Company Limited	256
203.172.54.0/24	AS4750	CS Loxinfo Public Company Limited	256
203.172.58.0/24	AS4750	CS Loxinfo Public Company Limited	256
203.172.60.0/24	AS4750	reassign to Wan IP for Bangkok(Cyberworld)	256
203.172.61.0/24	AS4750	reassign to Corporate Wan for Cyberworld	256
203.172.62.0/24	AS4750	CS Loxinfo Public Company Limited	256
203.172.69.0/24	AS4750	CS LoxInfo Public COmpany Limited	256
203.172.70.0/24	AS4750	reassign to Management for service broadband	256
203.172.71.0/24	AS4750	reassign to Management for service broadband	256
203.172.78.0/24	AS4750	reassign to Hyatt Place Sukhumvit Bangkok (Pioneer Property Co., Ltd )	256
203.172.79.0/24	AS4750	reassign to Wan IP for Corporate customer(Cloud)(/31)	256
203.172.73.0/24	AS137392	reassign to KTB Securities (Thailand) Co., Ltd.	256
203.172.93.0/24	AS4750	CS LoxInfo Public COmpany Limited	256
203.172.95.0/24	AS4750	CS LoxInfo Public COmpany Limited	256
203.172.88.0/24	AS4750	CS LoxInfo Public COmpany Limited	256
203.172.108.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.111.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.112.0/24	AS45458	reassign to ¸£ ¸° ¸š ¸š mass mail marketing	256
203.172.117.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.44.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.52.0/24	AS45458	Advanced Wireless Network Company Limited	256
203.172.55.0/24	AS45458	Advanced Wireless Network Company Limited	256

Hosted domains

There are 32 domain names hosted across 27 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.172.40.147	wk.co.th	3
203.172.40.171	harborlandparty.com	3
203.172.41.140	newtronauction.com	2
203.172.40.182	doonum.net	1
203.172.40.73	hyde11.com	1
203.172.41.131	wisdomcloud.net	1
203.172.40.165	ltaxgo.net	1
203.172.40.81	thamturakit.com	1
203.172.40.22	star9.io	1
203.172.40.70	thaigeomatics.net	1
203.172.41.154	nida-envi-school.com	1
203.172.40.196	cu-tech.center	1
203.172.41.142	nsbmonitor.com	1
203.172.40.174	tamfire.net	1
203.172.40.77	nyce.co.th	1
203.172.41.168	iasosleep.com	1
203.172.40.75	hydeheritage.com	1
203.172.41.174	nice-healthy.com	1
203.172.40.227	ronnayut.com	1
203.172.41.132	peatswamps.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

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

IP Address	ASN	Details
203.172.41.33	AS9891 CS LOXINFO Public Company Limited.	`0.48ms` from Bangkok, TH
203.172.40.62	AS9891 CS LOXINFO Public Company Limited.	`0.59ms` 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
91.3.54.214	AS3320 Deutsche Telekom AG	`5.90ms` from Duesseldorf, DE
20.38.127.102	AS8075 Microsoft Corporation	`0.43ms` from Lohogaon, IN
159.242.118.38	AS51043 Aspire Technology Solutions Ltd	`0.31ms` from London, GB
6.14.103.134	AS668 United States Department of Defense (DoD)	`1.72ms` from Los Angeles, US
107.130.177.198	AS7018 AT&T Enterprises, LLC	`10.08ms` from Miami, US
88.124.61.214	AS12322 Free SAS	`8.95ms` from Paris, FR
103.66.151.22	AS150712 Weber Meyer Sdn Bhd	`1.89ms` from Sepang, MY
175.171.30.166	AS4837 CHINA UNICOM China169 Backbone	`9.07ms` from Tieling, CN
107.207.153.70	AS7018 AT&T Enterprises, LLC	`4.02ms` from Atlanta, US
32.132.217.86	AS7018 AT&T Enterprises, LLC	`0.47ms` from Atlanta, US
39.105.174.54	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`2.06ms` from Beijing, CN
59.182.93.198	AS9829 National Internet Backbone	`12.89ms` from Bengaluru, IN
14.142.0.166	AS4755 TATA Communications formerly VSNL is Leading ISP	`0.42ms` from Chennai, IN
13.58.165.166	AS16509 Amazon.com, Inc.	`0.12ms` from Columbus, US
24.78.9.6	AS6327 Shaw Communications	`18.68ms` from Edmonton, CA
51.77.207.22	AS16276 OVH SAS	`0.14ms` from Gravelines, FR
75.237.211.54	AS6167 Verizon Business	`13.35ms` from Los Angeles, US
90.0.30.182	AS3215 Orange S.A.	`8.77ms` from Paris, FR
173.13.144.102	AS7922 Comcast Cable Communications, LLC	`7.25ms` from San Jose, US
67.181.163.86	AS7922 Comcast Cable Communications, LLC	`6.14ms` from San Jose, US
69.114.188.166	AS6128 Cablevision Systems Corp.	`2.75ms` from Secaucus, US
119.207.127.134	AS4766 Korea Telecom	`1.65ms` from Seoul, KR
126.64.92.230	AS17676 SoftBank Corp.	`6.62ms` from Tokyo, JP
92.67.244.54	AS1136 KPN B.V.	`2.27ms` from Amsterdam, NL
172.183.168.54	AS8075 Microsoft Corporation	`0.28ms` from Chicago, US

Traceroute

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

traceroute -a -n -q1 -m5 203.172.42.66

traceroute to 203.172.42.66 (203.172.42.66): 5 hops max, 52 byte packets

1 [AS7195] 200.25.69.66 1.042 ms

2 [AS7195] 200.25.75.46 1.334 ms

3 *

4 *

5 *

Measurement taken from

IPinfo ProbeNet in Guatemala City, GT

On January 19th 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.

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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