203.172.84.0/22

AS4750 · CS LOXINFO PUBLIC COMPANY LIMITED

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Summary

Country	Thailand
Domain	csloxinfo.net
ASN	AS4750
Registry	APNIC
ID	CSC

WHOIS Details

inetnum:        203.172.80.0 - 203.172.87.255
netname:        CSC
descr:          CS LoxInfo Public COmpany Limited
descr:          973 President Tower
descr:          11th Floor, Ploenchit Road
descr:          Lumpini Pathumwan, Bangkok 10330
country:        TH
org:            ORG-CLPC1-AP
admin-c:        LIA1-AP
tech-c:         LIA1-AP
abuse-c:        AC1613-AP
status:         ALLOCATED PORTABLE
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:         csl-ip-admin@ais.co.th
abuse-mailbox:  csl-ip-admin@ais.co.th
admin-c:        LIA1-AP
tech-c:         LIA1-AP
auth:           # Filtered
remarks:        csl-ip-admin@ais.co.th 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:         csl-ip-admin@ais.co.th
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:         csl-ip-admin@ais.co.th
admin-c:        LIA1-AP
tech-c:         LIA1-AP
nic-hdl:        AC1613-AP
remarks:        Generated from irt object IRT-CSLOXINFO-TH
remarks:        csl-ip-admin@ais.co.th was validated on 2025-09-04
abuse-mailbox:  csl-ip-admin@ais.co.th
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:         csl-ip-admin@ais.co.th
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
203.172.40.0/22	AS9891	CS Loxinfo Public Company Limited	1,024
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
203.172.63.0/24	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
203.172.112.0/24	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
203.172.59.0/24	AS45458	Advanced Wireless Network Company Limited	256

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.172.86.109	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`0.63ms` from Bangkok, TH
203.172.84.1	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`2.24ms` from Bangkok, TH
203.172.87.1	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`0.60ms` from Bangkok, TH
203.172.85.1	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`4.96ms` 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
85.73.121.102	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`1.43ms` from Athens, GR
84.173.174.150	AS3320 Deutsche Telekom AG	`3.53ms` from Berlin, DE
74.204.137.166	AS35986 Vyve Broadband	`18.50ms` from Chicago, US
135.135.222.214	AS4181 TDS TELECOM	`9.11ms` from Chicago, US
128.2.210.86	AS9 Carnegie Mellon University	`4.68ms` from Cleveland, US
97.137.235.22	AS6167 Verizon Business	`19.88ms` from Dallas, US
148.230.106.182	AS47583 Hostinger International Limited	`0.35ms` from Frankfurt am Main, DE
78.149.3.86	AS13285 TalkTalk Communications Limited	`4.16ms` from London, GB
155.46.21.54	AS16050 Refinitiv Slough-LO5 resiliancy	`0.41ms` from London, GB
78.33.207.38	AS8468 ENTANET International Limited	`4.09ms` from London, GB
165.234.166.6	AS19530 State of North Dakota, ITD	`17.86ms` from Minneapolis, US
108.25.81.102	AS701 Verizon Business	`4.82ms` from New York City, US
86.247.197.166	AS3215 Orange S.A.	`2.51ms` from Paris, FR
176.146.118.86	AS5410 Bouygues Telecom SA	`2.92ms` from Paris, FR
3.33.55.150	AS7224 Amazon.com, Inc.	`0.25ms` from Seattle, US
177.207.99.38	AS18881 TELEFÔNICA BRASIL S.A	`19.23ms` from São Paulo, BR
177.81.50.118	AS28573 Claro NXT Telecomunicacoes Ltda	`6.22ms` from São Paulo, BR
213.139.8.6	AS212238 Datacamp Limited	`0.13ms` from Tel Aviv, IL
73.173.250.70	AS7922 Comcast Cable Communications, LLC	`7.71ms` from Ashburn, US
217.9.50.70	AS8881 1&1 Versatel GmbH	`0.78ms` from Berlin, DE
181.61.135.214	AS10620 Telmex Colombia S.A.	`9.75ms` from Bogota, CO
199.180.62.230	AS19368 Thrive Operations, LLC	`4.83ms` from Boston, US
99.163.241.118	AS7018 AT&T Enterprises, LLC	`5.89ms` from Chicago, US
23.56.205.102	AS16625 Akamai Technologies, Inc.	`0.20ms` from Frankfurt am Main, DE
36.102.172.86	AS4134 CHINANET-BACKBONE	`6.22ms` from Hohhot, CN

Traceroute

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

traceroute -a -n -q1 -f2 203.172.87.1

traceroute to 203.172.87.1 (203.172.87.1): 64 hops max, 52 byte packets

2 [] 203.159.68.108 2.35 ms

3 [AS4750] 203.170.172.94 3.968 ms

4 [AS4750] 203.172.87.1 0.677 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On January 9th 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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