subnet.im

AS400818Ausra LLC

United StatesRegistryARINTypeContent

As of 10th November 2026, AS400818 (Ausra LLC), a content network registered in the United States with ARIN, originates 1 IPv4 prefix covering 256 addresses and 2 IPv6 prefixes. By IPv4 address space that makes it the 59,962nd-largest of the 80,733 networks we see originating IPv4, and the 13,080th-largest of 18,751 in the United States. It is seen behind 10 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS32097 (WholeSale Internet, Inc.), and in front of 4 downstream networks. Every one of its announcements has 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

1

IPv6 prefixes

2

IPv4 addresses

256

IPv6 /64s

16.8M

Upstream graph

The networks AS400818 is seen behind, one and two hops out, drawn from real AS paths.

AS400818Toward the internet core
Upstream graph for AS400818: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS400818Ausra LLCThis networkAS6939Hurricane Electri…AS9002RETN LimitedAS24482SG.GSAS32097WholeSale Interne…AS49544i3D.net B.VAS20130Depaul UniversityAS132337AxclusiveAS38623Metfone (Viettel …AS215859Hetzner Cloud - S…AS3356Lumen (Level 3)AS174Cogent Communicat…AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS400818 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

48

adjacent networks

Upstreams
1021%
Peers
3471%
Downstreams
48%

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

Upstreams of AS400818
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer53362
AS32097WholeSale Internet, Inc.USPeer7361
AS24482SG.GSSGPeer133
AS58511Swoop (Anycast Global Backbone)AUPeer102
AS9002RETN LimitedGBPeer102
AS49544i3D.net B.VNLPeer102
AS18106Viewqwest Pte LtdSGPeer22
AS35280F5 Networks SARLFRPeer21
AS3130RGnet OUEEPeer21
AS293ESnetUSPeer11

Prefixes

The largest blocks AS400818 originates, widest first.

Largest prefixes originated by AS400818
PrefixAddressesVisibility
69.197.130.0/2425675/76
2602:fabb::/4016.8M × /6462/63
2a05:b0c7:1800::/4865.5k × /6462/63

Routing health

How AS400818'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

  • Valid100.0%3
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%3
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 1 prefixes

IPv6 — 2 prefixes

  • /4016.8M × /6450.0%1
  • /4865.5k × /6450.0%1

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS400818 started or stopped in this period.

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