203.121.172.0/23

AS4765  ·  Pacific Internet Pte Ltd

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Summary

Country Thailand
Domain pacificinternet.com
ASN AS4765
Registry APNIC
ID PACIFICINTERNT-TH

WHOIS Details

inetnum:        203.121.172.0 - 203.121.172.255
netname:        PACIFICINTERNT-TH
descr:          Pacific Internet (Thailand) Ltd.
country:        TH
admin-c:        AP3-AP
tech-c:         NPT3-AP
abuse-c:        AP993-AP
status:         ALLOCATED NON-PORTABLE
remarks:        Geofeed https://intra.pacific.net.th/geofeed.csv
mnt-by:         MAINT-TH-PITH
mnt-irt:        IRT-PI-TH
last-modified:  2021-01-19T07:32:13Z
source:         APNIC

irt:            IRT-PI-TH
address:        Pacific Internet (Thailand) Ltd., 140, 10th Fl., Unit 1007-1008, One Pacific Place, Sukhumvit Rd., Klongtoey, Bangkok 10110
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        AP3-AP
tech-c:         AP3-AP
auth:           # Filtered
remarks:        [email protected] was validated on 2025-11-28
mnt-by:         MAINT-TH-PITH
last-modified:  2025-12-15T02:15:49Z
source:         APNIC

role:           ABUSE PITH
country:        ZZ
address:        Pacific Internet (Thailand) Ltd., 140, 10th Fl., Unit 1007-1008, One Pacific Place, Sukhumvit Rd., Klongtoey, Bangkok 10110
phone:          +000000000
e-mail:         [email protected]
admin-c:        AP3-AP
tech-c:         AP3-AP
nic-hdl:        AP993-AP
remarks:        Generated from irt object IRT-PI-TH
remarks:        [email protected] was validated on 2025-11-28
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-11-28T07:40:06Z
source:         APNIC

role:           NOC PI TH
address:        140, 10th Floor, Unit 1008, One Pacific Place, Sukhumvit Road, Klongtoey, Bangkok 10110
country:        TH
phone:          +6626872687
e-mail:         [email protected]
admin-c:        AP3-AP
tech-c:         NPT3-AP
nic-hdl:        NPT3-AP
mnt-by:         MAINT-TH-PITH
last-modified:  2024-09-12T02:35:27Z
source:         APNIC

person:         Anukrom Punyashthiti
nic-hdl:        AP3-AP
e-mail:         [email protected]
e-mail:         [email protected]
address:        72, 16th Fl., Rm. 1604, CAT Telecom Tower,
address:        Charoenkrung Rd.,
address:        Bangrak
address:        Bangkok 10501
phone:          +66-2-081-8888
fax-no:         +66-2-653-4284
country:        TH
mnt-by:         MAINT-TH-PITH
last-modified:  2024-09-12T02:38:47Z
source:         APNIC

route:          203.121.172.0/24
origin:         AS4765
descr:          PACIFIC INTERNET (S) PTE. LTD. 1 Fusionopolis Walk #06-02 South Tower SOLARIS Singapore
mnt-by:         MAINT-SG-PACIFIC
last-modified:  2019-03-26T09:04:45Z
source:         APNIC

Overlapping Ranges

BGP prefixes that are contained by 203.121.172.0/23

Range ASN Company Num of IPs
203.121.173.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.172.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256

Nearby Ranges

BGP prefixes that overlap with 203.121.0.0/16

Range ASN Company Num of IPs
203.121.64.0/18 AS9930 TT DOTCOM SDN BHD 16,384
203.121.224.0/19 AS18419 DA DA BROADBAND LTD. 8,192
203.121.0.0/19 AS9930 TT DOTCOM SDN BHD 8,192
203.121.32.0/19 AS9930 TT DOTCOM SDN BHD 8,192
203.121.128.0/20 AS4765 Pacific Internet Pte Ltd 4,096
203.121.160.0/22 AS4765 Pacific Internet Pte Ltd 1,024
203.121.164.0/23 AS4765 Pacific Internet Pte Ltd 512
203.121.134.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.135.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.136.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.137.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.138.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.139.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.140.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.141.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.142.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.143.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.145.0/24 AS4765 Pacific Internet Pte Ltd 256
203.121.148.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.149.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.150.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.151.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.160.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.161.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.162.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.163.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.164.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.172.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.173.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.178.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.179.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.186.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.225.0/24 AS18419 DaDa Broadband Ltd. 256
203.121.129.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.128.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.132.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256
203.121.133.0/24 AS4765 Pacific Internet (Thailand) Ltd. 256

Hosted domains

There are no domains currently hosted on this ASN.

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

Pingable IPs

No IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

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
52.41.142.199 AS16509 Amazon.com, Inc. 0.15ms from Boardman, US
181.209.100.39 AS52361 ARSAT - Empresa Argentina de Soluciones Satelitales S.A. 7.68ms from Buenos Aires, AR
115.3.165.71 AS4766 Korea Telecom 2.67ms from Incheon, KR
92.59.71.87 AS12479 Orange Espagne SA 1.54ms from Madrid, ES
85.204.140.215 AS29119 AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL 9.96ms from Madrid, ES
65.128.160.151 AS209 CenturyLink Communications, LLC 2.29ms from Minneapolis, US
182.164.68.135 AS17511 OPTAGE Inc. 1.80ms from Osaka, JP
86.223.248.167 AS3215 Orange S.A. 8.19ms from Paris, FR
112.237.228.167 AS4837 CHINA UNICOM China169 Backbone 8.55ms from Qingdao, CN
93.124.82.215 AS12389 PJSC Rostelecom 7.86ms from Samara, RU
34.130.131.199 AS396982 Google LLC 0.10ms from Toronto, CA
129.252.11.7 AS12005 University of South Carolina 7.53ms from Atlanta, US
75.69.178.7 AS7922 Comcast Cable Communications, LLC 4.91ms from Boston, US
66.222.209.7 AS852 TELUS Communications Inc. 9.71ms from Calgary, CA
102.133.64.55 AS8075 Microsoft Corporation 1.55ms from Cape Town, ZA
14.153.159.23 AS4134 CHINANET-BACKBONE 2.11ms from Guangzhou, CN
116.120.224.39 AS9318 SK Broadband Co Ltd 7.97ms from Incheon, KR
82.188.219.215 AS3269 Telecom Italia S.p.A. 4.78ms from Milan, IT
97.106.46.215 AS33363 Charter Communications, Inc 8.55ms from Orlando, US
219.63.37.215 AS17676 SoftBank Corp. 4.20ms from Osaka, JP
121.112.60.231 AS4713 NTT DOCOMO BUSINESS,Inc. 4.95ms from Osaka, JP
90.23.124.247 AS3215 Orange S.A. 6.07ms from Paris, FR
13.91.82.183 AS8075 Microsoft Corporation 0.57ms from San Jose, US
76.137.241.215 AS7922 Comcast Cable Communications, LLC 9.68ms from Santa Clara, US
200.133.192.119 AS1916 Rede Nacional de Ensino e Pesquisa 0.58ms from Sao Paulo, BR

Traceroute

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

$
traceroute -a -n -q1 -f3 -m15 203.121.172.63
traceroute to 203.121.172.63 (203.121.172.63): 15 hops max, 52 byte packets
3 [AS6939] 184.104.198.69 11.978 ms
4 *
6 *
7 *
8 *
9 [AS4651] 61.19.9.65 238.666 ms
10 [AS4651] 61.19.7.2 234.728 ms
11 [AS4651] 122.155.224.246 233.584 ms
12 [AS4765] 203.121.132.19 236.182 ms
13 *
14 *
15 *
Measurement taken from IPinfo ProbeNet in Jacksonville, US
On

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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