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	Prefix	Description
	103.5.242.0/24	SingAREN
	103.5.243.0/24	SingAREN
	2401:c7c0:21a::/48	SingAREN

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS23855	Singapore Advanced Research and Education Network	✔	✔
	AS6939	Hurricane Electric LLC	✘	✔
	AS4637	Telstra International Limited	✔	✘
	AS136968	SingAREN	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✔	✔
	AS23855	Singapore Advanced Research and Education Network	✔	✔
	AS136968	SingAREN	✔	✘
	AS23767	A-STAR	✔	✔
	AS17617	Nanyang Polytechnic	✔	✔
	AS132398	Science and Engineering Institutes	✔	✔
	AS4637	Telstra International Limited	✔	✘
	AS9419	Nanyang Technological University	✔	✘
	AS293	ESnet	✔	✔
	AS137409	GSL Networks Pty LTD	✔	✔
	AS59238	Innovative Extremist Co., Ltd.	✔	✔
	AS55850	Mercury NZ Limited	✔	✔
	AS4777	Asia Pacific Network Information Centre	✔	✔
	AS20965	GEANT Vereniging	✔	✔
	AS141682	APIDT Infrastructure Pty Ltd	✔	✔
	AS15169	Google LLC	✔	✘
	AS7610	NUS Gigapop	✔	✘
	AS55518	SGIX Route Servers	✔	✔
	AS45430	SBN-IIG/AWN-IIG transit provider	✔	✔
	AS24198	PT Datakom Padma Jaya	✔	✔
	AS55655	PT Sarana Insan Muda Selaras	✔	✔
	AS59217	Azonne Limited	✔	✔
	AS9304	HGC Global Communications Limited	✔	✔
	AS58495	PT Parsaoran Global Datatrans	✔	✔
	AS17579	KISTI	✔	✘
	AS4229	Zenlayer Inc	✔	✘
	AS140627	OneQode	✔	✘
	AS45701	PT Internet Madju Abad Milenindo	✔	✘
	AS64049	Reliance Jio Infocomm Pte. Ltd.	✔	✘
	AS20473	The Constant Company, LLC	✔	✔
	AS216211	CYBERVERSE LLC	✔	✔
	AS917	Misaka Network, Inc.	✔	✔
	AS38082	True International Gateway Co., Ltd.	✔	✔
	AS6774	BICS (Belgacom)	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS134654	PT Data Utama Dinamika	✔	✘
	AS56665	Proximus Luxembourg S.A.	✔	✔
	AS38158	PT Cyberindo Aditama	✔	✔
	AS38001	NewMedia Express Pte. Ltd.	✔	✘
	AS147168	PT NTT Indonesia	✔	✘
	AS141983	PT Rajeg Media Telekomunikasi	✔	✘
	AS138121	PT Mora Telematika Indonesia Tbk	✔	✘
	AS24482	SG.GS	✔	✔
	AS136106	PT Mega Akses Persada	✔	✘
	AS132337	Axclusive	✔	✘
	AS35889	University of Hawaii	✔	✘
	AS7575	Australian Academic and Research Network (AARNet)	✔	✘
	AS8849	Melbikomas UAB	✘	✔
	AS7713	PT Telkom Indonesia Tbk	✔	✘
	AS55818	Matrix Cable Internet Exchange	✔	✘
	AS202617	Kering Eyewear S.p.A.	✔	✘
	AS9299	PLDT (Philippine Long Distance Telephone Company)	✔	✘
	AS131475	Singapore Institute of Technology	✔	✘
	AS7500	WIDE Project - M-root	✔	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS23855	Singapore Advanced Research and Education Network	✘	✔
	AS132398	Science and Engineering Institutes	✔	✘
	AS23767	A-STAR	✔	✘

aut-num:        AS134148
as-name:        
descr:          SingAREN
descr:          Singapore Advanced Research and Education Network (SingAREN)
descr:          c/o A*STAR Computational Resource Centre (A*CRC)
descr:          1 Fusionopolis Way
descr:          # 17-01 Connexis South
country:        SG
org:            ORG-SA8-AP
admin-c:        SA140-AP
tech-c:         SA140-AP
abuse-c:        AS2199-APAS2199-AP
mnt-routes:     MAINT-SG-SINGAREN-GIX
mnt-by:         APNIC-HM
mnt-irt:        IRT-SINGAREN-GIX-SG
last-modified:  2022-10-04T10:12:19Z
mnt-lower:      MAINT-SG-SINGAREN-GIX
source:         APNIC


organisation:   ORG-SA8-AP
org-name:       SingAREN
org-type:       LIR
country:        SG
address:        ********
address:        ********
address:        ********
address:        ********
phone:          ********
# Email removed, Log into bgp.tools to see whois emails
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:15:04Z
source:         APNIC

Last Update: 2026-02-09T03:22:31Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-hurricanev6	20348
APNIC	as23855:as-local-institution	13
RADB	as-telstra-testing-1	11788
ARIN	as32421:as-customers	149
APNIC	as23855:as-rne-local-institution	9
APNIC	as134148:as-rne-local-institution	9
ARIN	as293:as-from-singaren-to-esnet	4548
APNIC	as23855:as-singaren	4
RADB	as-kddcustomer2	8206
APNIC	as134148:as-local-institution	13
RADB	as-telstra-intl-customers	12012
RIPE	as20965:as-from-tein-to-geant	656
RADB	as-serversau-transit	26