AS23855

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Summary

IP address summary information
Name	Singapore Advanced Research and Education Network
Country	Singapore
Website	host.io/singaren.net.sg·singaren.net.sg
Hosted domains	1
IPv4 addresses	512
IPv6 addresses	1.21 × 10²⁴
ASN type	Education
Registry	APNIC
Allocated	20 years ago on Aug 24, 2005
Updated	2 years ago on Apr 24, 2024

Ranking

This network isn't currently ranked.

Geolocation

Share of IPv4 footprint per hexagonLessMore

Countries by IPv4 share

Singapore
100%

Held location over 90 days: 100%
Held location over 1 year: 100%
Median days between moves: 422 days
Geolocation scope: City

How consistently this network's IPs hold their geolocation. Read relative to the network type, not as a quality score.

IP Ranges

Netblock	Company	Num of IPs
203.30.38.0/24	Singapore Advanced Research and Education Network	256
203.30.39.0/24	Singapore Advanced Research and Education Network	256

IP Ranges

WHOIS


  ASHandle:       █████
  OrgID:          █████
  ASName:         ██████
  ASNumber:       AS█████
  RegDate:        ████-██-██
  Updated:        ████-██-██
  TechHandle:     ████-████
  Source:         ████

Hosted Domains

There are 1 domain names hosted across 1 IP addresses on this ASN.

IP Address	Domain	Count
203.30.39.25		1

Places

Peers

There are 50 peers for this ASN.

ASN	Name	Rank

Upstreams

There are 3 upstreams for this ASN.

ASN	Name	Rank
AS4637	Telstra Global
AS6939	Hurricane Electric LLC
AS136968	SingAREN

Downstreams

There are 5 downstreams for this ASN.

ASN	Name	Rank
AS9419	Nanyang Technological University
AS23767	A-STAR
AS23864	Singapre Advance Research and Education Network - National Grid Office - IHPC
AS132398	Science and Engineering Institutes
AS134148	SingAREN

Pingable IPs

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

IP Address	ASN	Details
203.30.38.95 Ping	AS23855Singapore Advanced Research and Education Network	0.55ms from Singapore, SG
203.30.39.67 Ping	AS23855Singapore Advanced Research and Education Network	0.29ms from Singapore, SG
2001:df0:21a:fff3:0:4:5259:1 Ping	AS23855Singapore Advanced Research and Education Network	0.76ms from Singapore, SG

Other Pingable IPs

IP Address	ASN	Details
85.222.240.63 Ping	AS198089IP Visie Networking B.V.	0.24ms from Amsterdam, NL
4.245.111.255 Ping	AS8075Microsoft Corporation	0.23ms from Amsterdam, NL
121.172.228.159 Ping	AS4766Korea Telecom	1.04ms from Incheon, KR
146.120.23.111 Ping	AS61390Garant-G Ltd.	11.60ms from Kazan, RU
223.226.91.255 Ping	AS24560Bharti Airtel Ltd., Telemedia Services	1.02ms from Kolkata, IN
95.232.171.207 Ping	AS3269Telecom Italia S.p.A.	1.17ms from Milan, IT
78.47.237.143 Ping	AS24940Hetzner Online GmbH	0.26ms from Nuernberg, DE
204.210.192.79 Ping	AS10796Charter Communications Inc	11.36ms from Pittsburgh, US
69.5.110.111 Ping	AS18516Molalla Communications Systems Inc.	1.50ms from Portland, US
14.50.140.191 Ping	AS4766Korea Telecom	4.23ms from Seoul, KR

Pingable IPs

Important routers in AS23855


203.30.38.110	Singapore, Singapore
203.30.38.111	Singapore, Singapore
203.30.38.80	Singapore, Singapore
2001:df0:21a:ffea:0:13:4148:2	Singapore, Singapore
203.30.38.33	Singapore, Singapore
203.30.38.37	Singapore, Singapore
203.30.38.85	Singapore, Singapore
2001:df0:21a:ffea:0:13:4148:1	Singapore, Singapore
203.30.38.98	Singapore, Singapore
203.30.38.92	Singapore, Singapore

Important routers in AS23855

Traceroute

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

$ traceroute -a -n -q1 -f5 203.30.39.59

traceroute to 203.30.39.59 (203.30.39.59): 64 hops max, 52 byte packets

5 [AS215859] 5.223.0.81 0.322 ms

6 [] 103.16.102.28 1.563 ms

7 [AS23855] 203.30.39.59 0.794 ms

Measurement taken from

IPinfo ProbeNet in Singapore, SG

On July 13, 2026

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 AS23855 at robtex.

AS23855

Summary

Ranking

Geolocation

Countries by IPv4 share

IP Ranges

IP Ranges

WHOIS

Hosted Domains

Places

Peers

Upstreams

Downstreams

Pingable IPs

Other Pingable IPs

Pingable IPs

Important routers in AS23855

Important routers in AS23855

Traceroute

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Pingable IPs

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Traceroute

Ranking

IP Ranges

Important routers in AS23855

Geolocation

Countries by IPv4 share

AS133497

AS134515

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AS140939

AS142036

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