subnet.im

AS57488Avena Technologie Beata Szulc

PolandRegistryRIPE NCC

As of 11th November 2026, AS57488 (Avena Technologie Beata Szulc), a network registered in Poland with RIPE NCC, originates 2 IPv4 prefixes covering 512 addresses. By IPv4 address space that makes it the 49,318th-largest of the 80,743 networks we see originating IPv4, and the 1,073rd-largest of 2,109 in Poland. It is seen behind 2 upstream networks, most often AS29649 (Limes sp. z o.o.) and AS12912 (T-Mobile Polska S.A.). 50% 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

2

IPv6 prefixes

0

IPv4 addresses

512

IPv6 /64s

0

Upstream graph

The networks AS57488 is seen behind, one and two hops out, drawn from real AS paths.

AS57488Toward the internet core
Upstream graph for AS57488: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS57488Avena Technologie…This networkAS12912T-Mobile Polska S…AS29649Limes sp. z o.o.AS1299Arelion (fka. Tel…AS33891Core-Backbone GmbHAS12831Technical Univers…AS29314VECTRA S.A.

Networks observed one and two hops upstream of AS57488 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS57488
NetworkCountryRelationshipPathsVantage pts
AS29649Limes sp. z o.o.PLPeer14176
AS12912T-Mobile Polska S.A.PLPeer1111

Prefixes

The largest blocks AS57488 originates, widest first.

Largest prefixes originated by AS57488
PrefixAddressesVisibility
91.217.221.0/2425676/76
91.232.102.0/2425676/76

Routing health

How AS57488'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

  • Valid50.0%1
  • Invalid0.0%0
  • No ROA50.0%1

Propagation

  • Globally propagated90% of full-feed peers or more100.0%2
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 2 prefixes

Recent changes

Announcements that started or stopped since 12th Oct 2026.

No announcement by AS57488 started or stopped in this period.

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