AS23767 A-STAR
IPv4 addresses
8,192
IPv6 /48 networks
1
RPKI
6 valid24 no ROA
Peers and downstreams
2
Holder
- AS name
- A-STAR-AS-AP
- Description
- A-STAR Agency for Science, Technology and Research Research Data Center Singapore
- Organisation
- A*STAR
- Abuse contact
- Not published
- Assigned
- 2003-06-11
- Registered
- 2008-09-04
- Record last changed
- 2023-10-31 09:29 UTC
103.37.196.0/24103.37.197.0/24103.37.198.0/24103.37.199.0/24123.136.64.0/24123.136.67.0/24123.136.68.0/24123.136.69.0/24123.136.70.0/24123.136.71.0/24192.122.131.0/24192.122.132.0/24192.122.133.0/24192.122.134.0/24192.122.135.0/24192.122.136.0/24192.122.137.0/24192.122.138.0/24192.122.139.0/24192.122.140.0/24202.130.56.0/22202.130.56.0/24202.130.58.0/24202.130.59.0/24202.6.240.0/24202.6.241.0/24202.6.242.0/24202.6.243.0/24202.83.248.0/22
| AS134148 | SingAREN SINGAREN-GIX-AS-AP-2 |
| AS132398 | Science and Engineering Institutes SCEI-AS-AP |
Upstream graph
Upstreams and their upstreams, from BGP pathsNetwork health
Grade C · 70/100| partly | Prefixes covered by valid ROAs 6 of 30 announced prefixes are RPKI valid, 24 have no ROA. |
5/25 |
| pass | No RPKI invalid announcements None of the announcements is RPKI invalid. |
10/10 |
| pass | Announces IPv6 1 IPv6 prefix. |
15/15 |
| pass | More than one upstream 6 upstreams seen in BGP. |
10/10 |
| pass | Working abuse contact ITSS_Network@hq.a-star.edu.sg is published. |
15/15 |
| fail | Publishes a geofeed No geofeed found. Without one, location databases have to guess. |
0/10 |
| pass | No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger. |
10/10 |
| pass | Registry record maintained Last changed 2023-10-31. |
5/5 |
Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.
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[](https://ip-fd.net/asn/23767)
Use rpki.svg instead of health.svg for the RPKI badge.
Routing changes
Last 30 days| 2026-10-04 03:36 UTC | Relationship changed | AS132398 | upstream to peer |
WHOIS
aut-num: AS23767 as-name: A-STAR-AS-AP handle: AS23767 remarks: A-STAR remarks: Agency for Science, Technology and Research remarks: Research Data Center remarks: Singapore remarks: A*STAR BGP4 ADMIN technical,administrative:NS94-AP (Network Support) <ITSS_Network_data@hq.a-star.edu.sg> abuse: IRT-A-STAR-SG (IRT-A-STAR-SG) <ITSS_Network@hq.a-star.edu.sg> registrant: ORG-AA1-AP (A*STAR) <contact@a-star.edu.sg> registration: 2008-09-04T06:40:35Z last changed: 2023-10-31T09:29:20Z source: APNIC (RDAP)