subnet.im

AS7575Australian Academic and Research Network (AARNet)

AustraliaRegistryAPNICTypeCarrier

As of 26th September 2026, AS7575 (Australian Academic and Research…), a transit carrier registered in Australia with APNIC, originates 166 IPv4 prefixes covering 1.2M addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 407th-largest of the 79,516 networks we see originating IPv4, and the 6th-largest of 1,661 in Australia. It is seen behind 22 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS2914 (NTT America, Inc.), and in front of 100 downstream networks. 41% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

166

IPv6 prefixes

9

IPv4 addresses

1.2M

IPv6 /64s

25.8B

Upstream graph

The networks AS7575 is seen behind, one and two hops out, drawn from real AS paths.

AS7575Toward the internet core
Upstream graph for AS7575: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS7575Australian Academ…This networkAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS3491PCCW Global (HK) …AS6939Hurricane Electri…AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS3130RGnet OUAS49544i3D.net B.VAS3549Lumen (fka. Globa…AS24516Virtutel Pty LtdAS58511Swoop (Anycast Gl…

Networks observed one and two hops upstream of AS7575 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

654

adjacent networks

Upstreams
223%
Peers
53281%
Downstreams
10015%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS7575
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer12,85863
AS2914NTT America, Inc.USPeer12,61957
AS3356Lumen (Level 3)USPeer7,46346
AS3491PCCW Global (HK) Ltd.HKPeer1,91212
AS6939Hurricane Electric LLCUSPeer1,54217
AS38880Micron21 Datacentre Pty LtdAUPeer1,0383
AS35280F5 Networks SARLFRPeer1,0213
AS24490Trans-Eurasia Information Network (TEIN2) - SGCNPeer6961
AS9002RETN LimitedGBPeer6234
AS49544i3D.net B.VNLPeer5762

Prefixes

All 175

The largest blocks AS7575 originates, widest first.

Largest prefixes originated by AS7575
PrefixAddressesVisibility
129.96.0.0/1665.5k80/81
130.56.0.0/1665.5k80/81
131.170.0.0/1665.5k80/81
131.181.0.0/1665.5k80/81
132.234.0.0/1665.5k80/81
134.115.0.0/1665.5k80/81
134.148.0.0/1665.5k80/81
137.92.0.0/1665.5k80/81
137.111.0.0/1665.5k80/81
138.25.0.0/1665.5k80/81

Routing health

How AS7575's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid41.1%72
  • Invalid0.0%0
  • No ROA58.9%103

Propagation

  • Globally propagated90% of full-feed peers or more100.0%175
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 166 prefixes

IPv6 — 9 prefixes

  • /324.3B × /6466.7%6
  • /4865.5k × /6433.3%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

No announcement by AS7575 started or stopped in this period.

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.