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 1,208,925,819,614,629,200,000,000
ASN type Education
Registry apnic
Allocated 23 years ago on Jun 12, 2003
Updated 3 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
202.6.242.74 ██████████ 1
123.136.68.200 ██████████ 1
123.136.66.199 ██████████ 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

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

IP Address ASN Details
192.122.140.20 AS23767 A-STAR 1.29ms from Singapore, SG
192.122.136.4 AS23767 A-STAR 0.96ms from Singapore, SG
202.83.250.33 AS23767 A-STAR 0.76ms from Singapore, SG
103.37.199.4 AS23767 A-STAR 0.94ms from Singapore, SG
123.136.64.7 AS23767 A-STAR 0.94ms from Singapore, SG
123.136.68.2 AS23767 A-STAR 1.68ms from Singapore, SG
2001:df0:75::1 AS23767 A-STAR 0.94ms from Singapore, SG
202.6.243.105 AS23767 A-STAR 1.25ms 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
51.8.122.231 AS8075 Microsoft Corporation 0.39ms from Ashburn, US
114.253.158.87 AS4808 China Unicom Beijing Province Network 4.03ms from Beijing, CN
44.243.43.7 AS16509 Amazon.com, Inc. 0.22ms from Boardman, US
74.139.118.71 AS10796 Charter Communications Inc 11.68ms from Columbus, US
178.202.82.55 AS3209 Vodafone GmbH 5.74ms from Frankfurt am Main, DE
113.125.181.23 AS58519 Cloud Computing Corporation 0.30ms from Guiyang, CN
140.228.161.103 AS15108 Allo Communications LLC 5.84ms from Lincoln, US
85.139.198.215 AS2860 NOS COMUNICACOES, S.A. 5.21ms from Lisbon, PT
189.223.216.119 AS8151 UNINET 5.30ms from Los Angeles, US
61.120.231.135 AS10010 TOKAI Communications Corporation 3.84ms from Tokyo, JP
61.211.216.199 AS10010 TOKAI Communications Corporation 2.27ms from Tokyo, JP
43.206.129.39 AS16509 Amazon.com, Inc. 1.23ms from Tokyo, JP
108.94.54.231 AS7018 AT&T Enterprises, LLC 2.51ms from Dallas, US
54.76.247.135 AS16509 Amazon.com, Inc. 0.22ms from Dublin, IE
86.170.47.39 AS2856 British Telecommunications PLC 7.56ms from Erith, GB
84.148.110.135 AS3320 Deutsche Telekom AG 1.89ms from Frankfurt am Main, DE
108.187.192.55 AS132839 POWER LINE DATACENTER 1.56ms from Hong Kong, HK
180.65.136.231 AS9318 SK Broadband Co Ltd 7.44ms from Incheon, KR
62.211.188.151 AS3269 Telecom Italia S.p.A. 4.64ms from Milan, IT
193.206.119.199 AS137 Consortium GARR 11.78ms from Rome, IT
106.54.77.215 AS45090 Shenzhen Tencent Computer Systems Company Limited 1.93ms from Shanghai, CN
86.141.244.151 AS2856 British Telecommunications PLC 2.83ms from Erith, GB
80.157.223.247 AS3320 Deutsche Telekom AG 0.78ms from Frankfurt am Main, DE
82.60.77.183 AS3269 Telecom Italia S.p.A. 1.68ms from Milan, IT
14.133.64.71 AS18126 Chubu Telecommunications Company, Inc. 3.87ms from Osaka, JP

Traceroute

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

$
traceroute -a -n -q1 -f3 -m7 123.136.70.126
traceroute to 123.136.70.126 (123.136.70.126): 7 hops max, 52 byte packets
3 [AS49434] 193.178.0.56 3.567 ms
4 [] 37.49.238.60 0.861 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Paris, FR
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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