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If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	103.227.20.0/23	AUSTRALIAN CENTRE FOR ADVANCED COMPUTING
	103.227.22.0/23	AUSTRALIAN CENTRE FOR ADVANCED COMPUTING
	139.5.172.0/24	AUSTRALIAN CENTRE FOR ADVANCED COMPUTING
	139.5.172.0/23	AUSTRALIAN CENTRE FOR ADVANCED COMPUTING
	139.5.173.0/24	AUSTRALIAN CENTRE FOR ADVANCED COMPUTING
	202.47.84.0/24	NSW Education Standards Authority
	202.47.85.0/24	NSW Education Standards Authority
	202.52.45.0/24	NSW State Emergency Service
	202.59.246.0/24	NSW State Emergency Service
	202.129.148.0/22	Bulletproof, Mission Critical Cloud
	202.129.152.0/21	Bulletproof, Mission Critical Cloud
	203.3.178.0/23	Department of Communities and Justice
	203.3.178.0/24	Department of Communities and Justice
	203.3.179.0/24	Department of Communities and Justice
	203.3.188.0/23	Department of Communities and Justice
	203.3.188.0/24	Department of Communities and Justice
	203.3.189.0/24	Department of Communities and Justice
	203.22.104.0/23	AUSTRALIAN CENTRE FOR ADVANCED COMPUTING
	203.166.218.0/24	NSW Education Standards Authority
	203.202.0.0/24	SingTel Optus Pty Ltd
	2001:df1:3a00::/48	AUSTRALIAN CENTRE FOR ADVANCED COMPUTING

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS4826	Vocus Connect International Backbone	✔	✔
	AS38195	Superloop	✔	✔
	AS13335	Cloudflare, Inc.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS4826	Vocus Connect International Backbone	✔	✔
	AS17918	ac3, Australian Centre for Advanced Computing and Com...	✔	✔
	AS13335	Cloudflare, Inc.	✔	✘
	AS38195	Superloop	✔	✔
	AS64073	Vetta Group	✔	✔
	AS17732	ac3, Australian Centre for Advanced Computing and Com...	✔	✔
	AS4764	Aussie Broadband	✔	✔
	AS136972	Gigafy	✔	✘
	AS139077	FREEDOM INTERNET HOLDINGS PTY LTD	✔	✔
	AS2635	Automattic, Inc	✔	✔
	AS63956	5G NETWORK OPERATIONS PTY LTD	✔	✔
	AS7575	Australian Academic and Research Network (AARNet)	✔	✔
	AS36236	NetActuate, Inc	✔	✔
	AS49544	i3D.net B.V	✔	✔
	AS20473	The Constant Company, LLC	✔	✔
	AS38561	NTT Australia Solutions Pty Ltd	✔	✔
	AS16276	OVH SAS	✔	✔
	AS24482	SG.GS	✔	✔
	AS152909	SaferCities	✔	✘
	AS132847	Network Solutions Group Pty Ltd	✔	✘
	AS55850	Mercury NZ Limited	✔	✔

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Downstreams

	ASN	Description	IPv4	IPv6
	AS17918	ac3, Australian Centre for Advanced Computing and Com...	✔	✔

aut-num:        AS56307
as-name:        AC3-AS-AP
descr:          ac3, Australian Centre for Advanced Computing and Communications
descr:          Level 8 East, 8 Central Avenue, Eveleigh New South Wales 2015
country:        AU
org:            ORG-ACFA1-AP
admin-c:        MO273-AP
tech-c:         JM2580-AP
abuse-c:        AA1457-AP
mnt-lower:      MAINT-AC3-MEMBER-AU
mnt-routes:     MAINT-AC3-MEMBER-AU
mnt-by:         APNIC-HM
mnt-irt:        IRT-AC3-MEMBER-AU
last-modified:  2025-10-06T23:59:24Z
source:         APNIC


organisation:   ORG-ACFA1-AP
org-name:       AUSTRALIAN CENTRE FOR ADVANCED COMPUTING AND COMMUNICATION PTY LTD
org-type:       LIR
country:        AU
address:        ********
address:        ********
phone:          ********
fax-no:         ********
# Email removed, Log into bgp.tools to see whois emails/phone numbers
mnt-ref:        APNIC-HM
mnt-by:         APNIC-HM
last-modified:  2023-09-05T02:16:20Z
source:         APNIC

Last Update: 2026-05-07T03:22:28Z UTC

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Member of the following AS-SETs

-	Member	ASN Count
RADB	as-telstra-intl-customers	12353
RADB	as7606:as-sa-ix	22517
RIPE	as-retn-actual-v6	3884
RADB	as-hurricane	24734
ARIN	as13335:as-customers	1588
RADB	as-telstra-testing-1	11846
RIPE	as-transroute-spec	19627
RADB	as-kddcustomer2	8206
RADB	as-superloop-cust	827
RADB	as2764:as-bgp-custs	1142
APNIC	as-bulletproof	6
RADB	as-hurricanev6	20826
RADB	as7606:as-nsw-ix	70466
APNIC	as4826:as-customers	8384
RIPE	as-megaport-rs-syd	84694
RIPE	as-retn-actual-v4	12835
RADB	as7545:as-tpgn-customers	1767