asn.dev

Autonomous system

AS23855 SINGAREN-GIX-AS-AP Singapore Advanced Research and Education Network

Unclassified APNIC

IPv4 addresses 512 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly SG
Exchanges 3 recorded by PCH
Upstreams 13 17 downstream
Flagged prefixes 0 none

Summary

SingAREN

Singapore · AI-generated

education research transit singapore

SINGAREN-GIX-AS-AP is operated by SingAREN (Singapore Advanced Research and Education Network).

What it's used for

  • The address space carries research and education traffic, as indicated by the registrant SingAREN and netname SINGAREN-GIX.
  • The AS announces 512 IPv4 addresses and 1 IPv6 prefix, maintaining 45 observed neighbours. This ratio of limited address space against a high number of peering partners indicates a transit or aggregation role for the national research network.

Notable

  • The registrant SingAREN and IRT contact IRT-SINGAREN-GIX-SG align directly with the AS holder name.
  • The address inventory consists of a single IPv4 prefix, 203.30.38.0/23, and one IPv6 prefix, 2001:df0:21a::/48.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 3 exchanges in 2 countries, largest first.

ExchangeLocationTheir address
JPIX TokyoTokyo, Japan210.171.225.159
Singapore Internet ExchangeSingapore, Singapore103.16.102.28
Singapore Open ExchangeSingapore, Singapore198.32.141.144

Transit providers

13 upstream, 17 downstream and 51 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4637Telstra Global66
AS136968SingAREN45
AS6939Hurricane Electric LLC18
AS23864Singapre Advance Research and Education Network - National Grid Office - IHPC4
AS134148SingAREN4
AS1103SURF B.V.3
AS24482SG.GS3
AS38229Lanka Education & Research Network, NREN3

All 13 upstreams →

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 512 addresses IPv6 1 prefixes

CountryNamePrefixes
SGSingapore2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS23855
Registry name
SINGAREN-GIX-AS-AP
Registrant
SingAREN
Abuse contact
networkadmin@singaren.net.sg
Registered
2008-09-04
Last changed
2024-04-24
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 3 valid, 0 with no ROA
ROAs
3 authorising AS23855
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
6 naming AS23855

Reputation

Classification and threat

Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.

Spamhaus DROP

Not on ASN-DROP The network as a whole is not listed.

No DROP prefixes None of its announced space is on the DROP prefix list.

Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 436 networks and 1,771 prefixes, as published 2026-10-13. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.

FBI IC3

No IC3 indicators Nothing from the FBI IC3 feed.

IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.

Elsewhere

Cross-check