203.172.120.0/22

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:        203.172.120.0 - 203.172.127.255
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:          203.172.124.0/22
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:  2025-05-29T00:37:36Z
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 are 4 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
203.172.120.11	thairoyalfrozen.com	2
203.172.121.84	breuning.co.th	1
203.172.121.150	kiriuthailand.com	1

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

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

IP Address	ASN	Details
203.172.121.225	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`0.76ms` from Bangkok, TH
203.172.123.62	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`2.43ms` from Bangkok, TH
203.172.122.12	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`0.62ms` from Bangkok, TH
203.172.120.178	AS4750 CS LOXINFO PUBLIC COMPANY LIMITED	`2.37ms` 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
194.229.78.166	AS702 Verizon Business	`0.54ms` from Amsterdam, NL
192.73.31.246	AS11743 EBSCO Industries, Inc.	`5.83ms` from Atlanta, US
35.81.143.198	AS16509 Amazon.com, Inc.	`0.17ms` from Boardman, US
23.30.178.166	AS7922 Comcast Cable Communications, LLC	`6.82ms` from Boston, US
69.148.236.134	AS7018 AT&T Enterprises, LLC	`2.96ms` from Houston, US
195.171.250.6	AS2856 British Telecommunications PLC	`0.80ms` from London, GB
81.155.137.134	AS2856 British Telecommunications PLC	`9.26ms` from London, GB
95.123.122.102	AS3352 TELEFONICA DE ESPANA S.A.U.	`6.35ms` from Madrid, ES
3.99.31.134	AS16509 Amazon.com, Inc.	`0.14ms` from Montreal, CA
174.113.25.230	AS812 Rogers Communications Canada Inc.	`7.13ms` from Montreal, CA
82.66.2.182	AS12322 Free SAS	`1.73ms` from Paris, FR
76.128.2.246	AS7922 Comcast Cable Communications, LLC	`6.68ms` from Pompano Beach, US
3.83.143.38	AS14618 Amazon.com, Inc.	`0.42ms` from Reston, US
200.202.219.246	AS7738 V tal	`0.65ms` from Rio de Janeiro, BR
12.119.9.102	AS7018 AT&T Enterprises, LLC	`2.94ms` from San Antonio, US
175.232.2.118	AS4766 Korea Telecom	`1.86ms` from Seoul, KR
116.198.57.6	AS23724 IDC, China Telecommunications Corporation	`4.01ms` from Tianjin, CN
173.238.85.86	AS7992 Cogeco Connexion Inc.	`7.91ms` from Toronto, CA
174.62.35.6	AS7922 Comcast Cable Communications, LLC	`9.86ms` from Denver, US
86.43.231.22	AS5466 Eircom Limited	`3.32ms` from Dublin, IE
134.61.129.118	AS47610 RWTH Aachen University	`6.08ms` from Frankfurt am Main, DE
139.189.150.54	AS4134 CHINANET-BACKBONE	`2.53ms` from Haikou, CN
121.40.51.150	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`5.18ms` from Hangzhou, CN
14.176.126.166	AS45899 VNPT Corp	`4.22ms` from Ho Chi Minh City, VN
107.148.141.246	AS398478 PEG TECH INC	`0.28ms` from Hong Kong, HK

Traceroute

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

traceroute -a -n -q1 -f2 203.172.122.12

traceroute to 203.172.122.12 (203.172.122.12): 64 hops max, 52 byte packets

2 [] 203.159.68.108 2.345 ms

3 [AS4750] 203.170.172.94 4.502 ms

4 [AS4750] 203.170.200.58 5.448 ms

5 [AS4750] 203.172.122.12 0.667 ms

Measurement taken from

IPinfo ProbeNet in Bangkok, TH

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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