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AS57878Prager Connect GmbH

AustriaRegistryRIPE NCC

As of 27th September 2026, AS57878 (Prager Connect GmbH), a network registered in Austria with RIPE NCC, originates 9 IPv4 prefixes covering 2.3k addresses. By IPv4 address space that makes it the 24,093rd-largest of the 79,525 networks we see originating IPv4, and the 183rd-largest of 615 in Austria. It is seen behind 1 upstream network, most often AS16276 (OVH SAS). 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

9

IPv6 prefixes

0

IPv4 addresses

2.3k

IPv6 /64s

0

Upstream graph

The networks AS57878 is seen behind, one and two hops out, drawn from real AS paths.

AS57878Toward the internet core
Upstream graph for AS57878: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS57878Prager Connect Gm…This networkAS16276OVH SASAS174Cogent Communicat…AS1299Arelion (fka. Tel…

Networks observed one and two hops upstream of AS57878 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS57878
NetworkCountryRelationshipPathsVantage pts
AS16276OVH SASFRPeer72881

Prefixes

The largest blocks AS57878 originates, widest first.

Largest prefixes originated by AS57878
PrefixAddressesVisibility
45.151.175.0/2425681/81
62.122.24.0/2425681/81
185.177.20.0/2425681/81
185.182.51.0/2425681/81
185.205.68.0/2425681/81
185.207.212.0/2425681/81
185.238.243.0/2425681/81
193.16.10.0/2425680/81
212.46.59.0/2425681/81

Routing health

How AS57878'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%9
  • Invalid0.0%0
  • No ROA0.0%0

Propagation

  • Globally propagated90% of full-feed peers or more100.0%9
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 9 prefixes

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.