203.172.102.0/23

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:        203.172.96.0 - 203.172.103.255
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:         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

route:          203.172.102.0/23
origin:         AS4750
descr:          CS Loxinfo Public Company Limited 90 CW Tower A 17-20th floor Ratchadapisek Rd Huai Kwang
mnt-by:         Loxinfo-IS
last-modified:  2025-05-29T00:36:56Z
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
203.172.59.0/24	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 is 1 domain name hosted across 1 IP address on this ASN. Checkout our API to access full domain hosting information.

IP Address	Domain	Domains on this IP
203.172.102.13	ivyai.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

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

IP Address	ASN	Details
203.172.102.110	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`1.98ms` from Bangkok, TH
203.172.103.225	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`2.14ms` 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
24.197.114.215	AS20115 Charter Communications LLC	`10.66ms` from Atlanta, US
75.248.191.151	AS6167 Verizon Business	`8.18ms` from Atlanta, US
24.91.63.87	AS7922 Comcast Cable Communications, LLC	`7.21ms` from Boston, US
27.13.142.23	AS4837 CHINA UNICOM China169 Backbone	`7.05ms` from Chongqing, CN
62.191.189.23	AS702 Verizon Business	`3.51ms` from Frankfurt am Main, DE
112.225.75.183	AS4837 CHINA UNICOM China169 Backbone	`1.18ms` from Qingdao, CN
179.234.180.7	AS28573 Claro NXT Telecomunicacoes Ltda	`4.73ms` from Sao Paulo, BR
179.153.173.215	AS28573 Claro NXT Telecomunicacoes Ltda	`10.25ms` from Sao Paulo, BR
59.23.117.151	AS4766 Korea Telecom	`4.74ms` from Seoul, KR
101.47.172.135	AS150436 Byteplus Pte. Ltd.	`0.77ms` from Singapore, SG
212.233.248.7	AS29582 Optisprint OOD	`7.48ms` from Sofia, BG
177.156.9.23	AS18881 TELEFÔNICA BRASIL S.A	`2.02ms` from São Paulo, BR
106.155.157.7	AS2516 KDDI CORPORATION	`9.74ms` from Tokyo, JP
105.111.3.231	AS36947 Telecom Algeria	`12.43ms` from Algiers, DZ
108.156.157.39	AS16509 Amazon.com, Inc.	`0.08ms` from Atlanta, US
181.50.235.119	AS10620 Telmex Colombia S.A.	`17.30ms` from Bogota, CO
87.78.13.247	AS8422 NetCologne Gesellschaft fur Telekommunikation mbH	`2.18ms` from Duesseldorf, DE
171.241.136.247	AS7552 Viettel Group	`1.37ms` from Hanoi, VN
14.184.209.23	AS45899 VNPT Corp	`3.84ms` from Ho Chi Minh City, VN
184.174.125.167	AS21769 Colocation America Corporation	`1.23ms` from Los Angeles, US
38.23.45.119	AS21554 Wisconsin CyberLynk Network, Inc.	`0.23ms` from Milwaukee, US
35.227.54.119	AS396982 Google LLC	`0.14ms` from Moncks Corner, US
220.125.248.167	AS4766 Korea Telecom	`2.58ms` from Seoul, KR
212.97.142.39	AS48854 team.blue Denmark A/S	`0.77ms` from Skanderborg, DK
60.16.84.135	AS4837 CHINA UNICOM China169 Backbone	`1.97ms` from Tieling, CN

Traceroute

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

traceroute -a -n -q1 -f5 203.172.103.1

traceroute to 203.172.103.1 (203.172.103.1): 64 hops max, 52 byte packets

5 [AS64050] 61.19.60.146 1.565 ms

6 [AS4750] 202.183.233.41 2.794 ms

7 [AS4750] 203.170.200.174 1.35 ms

8 [AS4750] 203.170.200.165 1.343 ms

9 [AS4750] 203.172.103.1 6.773 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

On January 18th 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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