subnet.im

AS201054Stowarzyszenie e-Poludnie

PolandRegistryRIPE NCC

As of 26th September 2026, AS201054 (Stowarzyszenie e-Poludnie), a network registered in Poland with RIPE NCC, originates 1 IPv6 prefix. It is seen behind 12 upstream networks, most often AS20473 (The Constant Company, LLC) and AS6939 (Hurricane Electric LLC), and in front of 487 downstream networks. None of its announcements have a valid RPKI ROA. 0% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

0

IPv6 prefixes

1

IPv4 addresses

0

IPv6 /64s

65.5k

Upstream graph

The networks AS201054 is seen behind, one and two hops out, drawn from real AS paths.

AS201054Toward the internet core
Upstream graph for AS201054: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS201054Stowarzyszenie e-…This networkAS3303Swisscom (Schweiz…AS6939Hurricane Electri…AS20473The Constant Comp…AS24940Hetzner Online Gm…AS137409GSL Networks Pty …AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS1299Arelion (fka. Tel…AS3356Lumen (Level 3)AS8529Zain Omantel Inte…AS32590Valve Corporation

Networks observed one and two hops upstream of AS201054 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

1,049

adjacent networks

Upstreams
121%
Peers
55052%
Downstreams
48746%

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

Upstreams of AS201054
NetworkCountryRelationshipPathsVantage pts
AS20473The Constant Company, LLCUSPeer5,8021
AS6939Hurricane Electric LLCUSPeer1,45636
AS24940Hetzner Online GmbHDEPeer8372
AS3303Swisscom (Schweiz) AGCHPeer7871
AS137409GSL Networks Pty LTDAUPeer5254
AS33891Core-Backbone GmbHDEPeer2362
AS50607Stowarzyszenie e-PoludniePLPeer7979
AS49544i3D.net B.VNLPeer662
AS24482SG.GSSGPeer634
AS201053Stowarzyszenie e-PoludniePLPeer601

Prefixes

The largest blocks AS201054 originates, widest first.

Largest prefixes originated by AS201054
PrefixAddressesVisibility
2a10:f783:1::/4865.5k × /6430/64

Routing health

How AS201054'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

  • Valid0.0%0
  • Invalid0.0%0
  • No ROA100.0%1

Propagation

  • Globally propagated90% of full-feed peers or more0.0%0
  • Partially propagated40% to 90%100.0%1
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv6 — 1 prefixes

  • /4865.5k × /64100.0%1

Recent changes

Announcements that started or stopped since 27th Aug 2026.

No announcement by AS201054 started or stopped in this period.

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