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AS37988Alpha Layer Pty Ltd

AustraliaRegistryAPNICTypeContent

As of 26th September 2026, AS37988 (Alpha Layer Pty Ltd), a content network registered in Australia with APNIC, originates 5 IPv4 prefixes covering 1.5k addresses and 6 IPv6 prefixes. By IPv4 address space that makes it the 31,105th-largest of the 79,516 networks we see originating IPv4, and the 452nd-largest of 1,661 in Australia. It is seen behind 2 upstream networks, most often AS136557 (Host Universal Pty Ltd) and AS174 (Cogent Communications, LLC), and in front of 23 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

5

IPv6 prefixes

6

IPv4 addresses

1.5k

IPv6 /64s

1.2B

Upstream graph

The networks AS37988 is seen behind, one and two hops out, drawn from real AS paths.

AS37988Toward the internet core
Upstream graph for AS37988: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS37988Alpha Layer Pty L…This networkAS174Cogent Communicat…AS136557Host Universal Pt…AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS4637Telstra Internati…

Networks observed one and two hops upstream of AS37988 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

51

adjacent networks

Upstreams
24%
Peers
2651%
Downstreams
2345%

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

Upstreams of AS37988
NetworkCountryRelationshipPathsVantage pts
AS136557Host Universal Pty LtdAUPeer1,651145
AS174Cogent Communications, LLCUSPeer60168

Prefixes

The largest blocks AS37988 originates, widest first.

Largest prefixes originated by AS37988
PrefixAddressesVisibility
195.114.14.0/2351281/81
103.108.228.0/2425681/81
185.199.227.0/2425681/81
195.114.126.0/2425681/81
195.114.127.0/2425681/81
2402:7340:4000::/341.1B × /6464/64
2402:7340:8000::/37134M × /6464/64
2a14:7581:d000::/4016.8M × /6464/64
2402:7340:1::/4865.5k × /6464/64
2402:7340:2::/4865.5k × /6464/64

Routing health

How AS37988'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%11
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%11
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 5 prefixes

IPv6 — 6 prefixes

  • /341.1B × /6416.7%1
  • /37134M × /6416.7%1
  • /4016.8M × /6416.7%1
  • /4865.5k × /6450.0%3

Recent changes

Announcements that started or stopped since 28th Aug 2026.

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