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 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
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
123.136.64.7 AS23767 A-STAR 0.94ms from Singapore, SG
202.6.243.105 AS23767 A-STAR 1.25ms from Singapore, SG
192.122.136.4 AS23767 A-STAR 0.96ms from Singapore, SG
123.136.68.2 AS23767 A-STAR 1.67ms from Singapore, SG
202.83.250.33 AS23767 A-STAR 0.85ms from Singapore, SG
2001:df0:75:1::2 AS23767 A-STAR 0.88ms from Singapore, SG
103.37.199.4 AS23767 A-STAR 0.97ms from Singapore, SG
192.122.140.20 AS23767 A-STAR 1.36ms 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
86.84.227.55 AS1136 KPN B.V. 2.52ms from Amsterdam, NL
191.84.40.247 AS22927 Telefonica de Argentina 1.55ms from Buenos Aires, AR
3.129.70.55 AS16509 Amazon.com, Inc. 0.15ms from Columbus, US
80.135.230.247 AS3320 Deutsche Telekom AG 3.76ms from Frankfurt am Main, DE
46.98.75.103 AS15377 TRADITIONAL LLC 7.32ms from Kyiv, UA
50.158.149.135 AS22773 Cox Communications Inc. 6.07ms from Los Angeles, US
31.131.214.71 AS50498 JSC ER-Telecom Holding 7.03ms from Moscow, RU
72.250.78.247 AS21928 T-Mobile USA, Inc. 18.05ms from Mount Prospect, US
39.88.254.151 AS4837 CHINA UNICOM China169 Backbone 1.75ms from Qingdao, CN
18.212.196.71 AS14618 Amazon.com, Inc. 0.42ms from Reston, US
8.153.74.87 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 3.38ms from Shanghai, CN
111.108.214.119 AS2516 KDDI CORPORATION 2.64ms from Tokyo, JP
124.110.234.119 AS2519 ARTERIA Networks Corporation 3.42ms from Tokyo, JP
83.22.246.71 AS5617 Orange Polska Spolka Akcyjna 7.12ms from Warsaw, PL
83.78.89.247 AS3303 Swisscom (Switzerland) Ltd 2.39ms from Zuerich, CH
217.162.43.55 AS6730 Sunrise GmbH 8.12ms from Zuerich, CH
208.97.140.7 AS26347 New Dream Network, LLC 0.40ms from Ashburn, US
17.253.119.23 AS6185 Apple Inc. 0.52ms from Ashburn, US
103.114.36.199 AS137584 Prefixnet 0.36ms from Dhaka, BD
123.58.215.71 AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED 0.69ms from Hong Kong, HK
92.48.94.103 AS29550 Team Blue Carrier Limited 1.65ms from London, GB
109.165.92.231 AS12389 PJSC Rostelecom 16.43ms from Moscow, RU
35.169.100.23 AS14618 Amazon.com, Inc. 0.23ms from Reston, US
151.27.96.103 AS1267 WIND TRE S.P.A. 4.15ms from Rome, IT
193.206.119.199 AS137 Consortium GARR 11.79ms from Rome, IT

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 103.37.198.239
traceroute to 103.37.198.239 (103.37.198.239): 7 hops max, 52 byte packets
3 [] 193.239.118.168 15.678 ms
4 [AS23764] 5.154.154.229 14.747 ms
5 *
6 *
7 *
Measurement taken from IPinfo ProbeNet in Copenhagen, DK
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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