Autonomous System details

AS23767

A-STAR  ·  a-star.edu.sg

Singapore

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AS23767 – A-STAR

Field Value
Country Singapore
Website a-star.edu.sg
Hosted domains 3
IPv4 addresses 8,704
IPv6 addresses 1,208,925,819,614,629,174,706,176
ASN type Education
Registry apnic
Allocated 23 years ago on Jun 12, 2003
Updated 2 years ago on Oct 31, 2023

IP Ranges

Netblock Company Num of IPs
202.83.248.0/22 Institute of High Performance Computing (IHPC) 1,024
202.130.56.0/22 ASTAR Computational Resource Centre 1,024
103.37.196.0/24 A*STAR 256
103.37.197.0/24 A*STAR 256
103.37.198.0/24 A*STAR 256
103.37.199.0/24 A*STAR 256
123.136.64.0/24 Agency for Science, Technology and Research 256
123.136.65.0/24 Agency for Science, Technology and Research 256
123.136.66.0/24 Agency for Science, Technology and Research 256
123.136.67.0/24 Agency for Science, Technology and Research 256
123.136.68.0/24 Agency for Science, Technology and Research 256
123.136.69.0/24 Agency for Science, Technology and Research 256
123.136.70.0/24 Agency for Science, Technology and Research 256
123.136.71.0/24 Agency for Science, Technology and Research 256
192.122.131.0/24 A*STAR 256
192.122.132.0/24 A*STAR 256
192.122.133.0/24 A*STAR 256
192.122.134.0/24 A*STAR 256
192.122.135.0/24 A*STAR 256
192.122.136.0/24 A*STAR 256
192.122.137.0/24 A*STAR 256
192.122.138.0/24 A*STAR 256
192.122.139.0/24 A*STAR 256
192.122.140.0/24 A*STAR 256
202.6.240.0/24 A*STAR 256
202.6.241.0/24 A*STAR 256
202.6.242.0/24 A*STAR 256
202.6.243.0/24 A*STAR 256
202.130.56.0/24 ASTAR Computational Resource Centre 256
202.130.58.0/24 ASTAR Computational Resource Centre 256
202.130.59.0/24 ASTAR Computational Resource Centre 256

Netblock Company
2001:df0:75::/48 ASTAR Computational Resource Centre
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WHOIS Details

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                                                ASHandle:       AS23767
                                                OrgID:          AS23767
                                                ASName:         AS23767
                                                ASNumber:       AS23767
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 3 domain names hosted across 3 IP addresses on this ASN.

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IP Address Domain Domains on this IP
123.136.66.199 ██████████ 1
202.6.242.74 ██████████ 1
123.136.68.200 ██████████ 1

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Peers

There are 6 peers for this ASN.

Peers Name
AS134148 SingAREN
AS139883 SPTEL PTE. LTD.
AS149446 Firmus Grid
AS18106 Viewqwest Pte Ltd
AS23855 Singapore Advanced Research and Education Network
AS4637 Telstra Global
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ASN API & Database

Upstreams

There are 6 upstreams for this ASN.

upstreams Name
AS134148 SingAREN
AS139883 SPTEL PTE. LTD.
AS149446 Firmus Grid
AS18106 Viewqwest Pte Ltd
AS23855 Singapore Advanced Research and Education Network
AS4637 Telstra Global
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ASN API & Database

Downstreams

There are no downstreams for this ASN.

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ASN API & Database

Pingable IPs

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

IP Address ASN Details
103.37.199.4 AS23767 A-STAR 1.08ms from Singapore, SG
192.122.136.3 AS23767 A-STAR 0.98ms from Singapore, SG
123.136.71.68 AS23767 A-STAR 1.19ms from Singapore, SG
192.122.140.7 AS23767 A-STAR 1.17ms from Singapore, SG
123.136.69.225 AS23767 A-STAR 1.17ms from Singapore, SG
202.6.243.50 AS23767 A-STAR 0.69ms from Singapore, SG
192.122.138.14 AS23767 A-STAR 1.20ms from Singapore, SG
103.37.196.146 AS23767 A-STAR 1.11ms from Singapore, SG
202.83.250.33 AS23767 A-STAR 0.83ms from Singapore, SG
202.6.242.30 AS23767 A-STAR 1.21ms from Singapore, SG
202.6.240.35 AS23767 A-STAR 1.16ms from Singapore, SG
123.136.68.57 AS23767 A-STAR 1.17ms from Singapore, SG
192.122.135.75 AS23767 A-STAR 1.09ms from Singapore, SG
123.136.64.7 AS23767 A-STAR 1.12ms from Singapore, SG
2001:df0:75:ffff::2 AS23767 A-STAR 1.54ms from Singapore, SG
192.122.131.98 AS23767 A-STAR 1.18ms from Singapore, SG
202.6.241.171 AS23767 A-STAR 1.16ms from Singapore, SG
192.122.139.233 AS23767 A-STAR 1.17ms from Singapore, SG

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
123.19.82.23 AS45899 VNPT Corp 8.08ms from Da Nang, VN
73.243.84.247 AS7922 Comcast Cable Communications, LLC 3.64ms from Denver, US
87.164.226.215 AS3320 Deutsche Telekom AG 3.75ms from Duesseldorf, DE
115.238.102.247 AS4134 CHINANET-BACKBONE 4.14ms from Hangzhou, CN
42.2.76.167 AS4760 HKT Limited 1.09ms from Hong Kong, HK
181.177.186.183 AS27839 Comteco Ltda 4.96ms from La Paz, BO
86.184.135.7 AS2856 British Telecommunications PLC 11.54ms from London, GB
51.140.2.199 AS8075 Microsoft Corporation 0.28ms from London, GB
191.91.6.199 AS27831 Colombia Móvil 8.90ms from Medellin, CO
35.181.35.231 AS16509 Amazon.com, Inc. 0.16ms from Paris, FR
86.209.102.55 AS3215 Orange S.A. 6.42ms from Paris, FR
223.203.3.23 AS4847 China Networks Inter-Exchange 4.23ms from Tianjin, CN
61.211.216.199 AS10010 TOKAI Communications Corporation 2.22ms from Tokyo, JP
65.24.163.135 AS10796 Charter Communications Inc 19.36ms from Columbus, US
73.116.253.55 AS7922 Comcast Cable Communications, LLC 4.29ms from Fremont, US
42.113.254.103 AS18403 FPT Telecom Company 7.25ms from Hanoi, VN
14.186.11.231 AS45899 VNPT Corp 1.48ms from Ho Chi Minh City, VN
218.55.219.135 AS9318 SK Broadband Co Ltd 7.09ms from Incheon, KR
111.72.133.151 AS4134 CHINANET-BACKBONE 4.04ms from Nanchang, CN
75.228.196.183 AS6167 Verizon Business 14.57ms from Providence, US
189.130.196.87 AS8151 UNINET 4.12ms from Santiago de Queretaro, MX
179.241.70.7 AS22085 Claro S/A 18.17ms from Sao Paulo, BR
78.72.9.23 AS3301 Telia Company AB 0.77ms from Stockholm, SE
99.234.93.151 AS812 Rogers Communications Canada Inc. 4.59ms from Toronto, CA
183.95.106.183 AS4837 CHINA UNICOM China169 Backbone 5.55ms from Wuhan, CN

Traceroute

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

$
traceroute -a -n -q1 -f4 -m11 123.136.66.237
traceroute to 123.136.66.237 (123.136.66.237): 11 hops max, 52 byte packets
4 [AS749] 26.116.13.3 3.963 ms
5 *
6 *
7 [AS749] 26.116.2.80 3.281 ms
9 *
10 *
11 *
Measurement taken from IPinfo ProbeNet in Fuzhou, CN
On

Related Networks

What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS23767 at robtex.

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