203.172.109.0/24

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:        203.172.109.0 - 203.172.109.255
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:  2024-07-18T04:23:57Z
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:         ip_admin@csloxinfo.net
admin-c:        LIA1-AP
tech-c:         LIA1-AP
nic-hdl:        LIA1-AP
mnt-by:         CSLOXINFO-IS
last-modified:  2017-06-09T17:43:45Z
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
203.172.110.0/24	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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Pingable IPs

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

IP Address	ASN	Details
203.172.109.241	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`1.00ms` 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
73.134.63.248	AS7922 Comcast Cable Communications, LLC	`8.81ms` from Ashburn, US
125.67.8.8	AS4134 CHINANET-BACKBONE	`5.57ms` from Chengdu, CN
173.22.175.8	AS30036 Mediacom Communications Corp	`7.95ms` from Chicago, US
98.227.4.104	AS7922 Comcast Cable Communications, LLC	`5.36ms` from Chicago, US
14.29.169.136	AS4134 CHINANET-BACKBONE	`1.84ms` from Guangzhou, CN
218.10.220.200	AS4837 CHINA UNICOM China169 Backbone	`5.88ms` from Harbin, CN
79.9.215.40	AS3269 Telecom Italia S.p.A.	`6.04ms` from Milan, IT
136.227.66.24	AS14543 SRT Communications, Inc.	`17.44ms` from Minneapolis, US
210.231.42.40	AS4725 SoftBank Corp.	`15.29ms` from Osaka, JP
210.142.248.8	AS7522 STNet, Incorporated	`5.23ms` from Osaka, JP
4.151.78.200	AS8075 Microsoft Corporation	`0.23ms` from San Antonio, US
187.236.74.136	AS8151 UNINET	`3.77ms` from Santiago de Queretaro, MX
220.127.17.24	AS4766 Korea Telecom	`2.08ms` from Seoul, KR
184.168.106.40	AS26496 GoDaddy.com, LLC	`0.88ms` from Singapore, SG
35.174.35.184	AS14618 Amazon.com, Inc.	`0.53ms` from Ashburn, US
23.218.125.152	AS16625 Akamai Technologies, Inc.	`0.27ms` from Ashburn, US
34.22.225.232	AS396982 Google LLC	`0.15ms` from Brussels, BE
41.129.175.168	AS24863 Link Egypt (Link.NET)	`19.90ms` from Cairo, EG
18.117.145.248	AS16509 Amazon.com, Inc.	`0.17ms` from Columbus, US
34.172.224.88	AS396982 Google LLC	`0.10ms` from Council Bluffs, US
94.102.203.24	AS47942 Regional Telecom Ltd	`1.08ms` from Dublin, IE
5.181.183.24	AS215238 IRFAN TUGRA ONEM	`0.34ms` from Istanbul, TR
132.157.130.24	AS21575 ENTEL PERU S.A.	`18.17ms` from Lima, PE
90.210.245.248	AS5607 Sky UK Limited	`1.60ms` from London, GB
37.68.5.248	AS15557 Societe Francaise Du Radiotelephone - SFR SA	`13.10ms` from Lyon, FR

Traceroute

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

traceroute -a -n -q1 -f2 203.172.109.145

traceroute to 203.172.109.145 (203.172.109.145): 64 hops max, 52 byte packets

2 [] 203.159.68.108 2.334 ms

3 [AS4750] 203.170.172.94 4.058 ms

4 [AS4750] 203.170.200.221 5.907 ms

5 [AS4750] 203.146.97.9 2.382 ms

6 [AS4750] 203.172.109.145 5.021 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On December 28th 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.

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