subnet.im

AS43641SOLLUTIUM EU Sp z.o.o.

PolandRegistryRIPE NCCTypeContent

As of 26th September 2026, AS43641 (SOLLUTIUM EU Sp z.o.o.), a content network registered in Poland with RIPE NCC, originates 127 IPv4 prefixes covering 35.6k addresses and 9 IPv6 prefixes. By IPv4 address space that makes it the 5,196th-largest of the 79,516 networks we see originating IPv4, and the 47th-largest of 2,096 in Poland. It is seen behind 25 upstream networks, most often AS6939 (Hurricane Electric LLC) and AS174 (Cogent Communications, LLC), and in front of 13 downstream networks. 94% 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, and 1 prefix is also originated by another network.

At a glance

IPv4 prefixes

127

IPv6 prefixes

9

IPv4 addresses

35.6k

IPv6 /64s

22B

Upstream graph

The networks AS43641 is seen behind, one and two hops out, drawn from real AS paths.

AS43641Toward the internet core
Upstream graph for AS43641: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS43641SOLLUTIUM EU Sp z…This networkAS174Cogent Communicat…AS3223Voxility LLPAS3257GTT Communication…AS6939Hurricane Electri…AS25091IP-Max SAAS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS2914NTT America, Inc.AS3356Lumen (Level 3)AS398465Rackdog LLCAS18106Viewqwest Pte LtdAS20130Depaul University

Networks observed one and two hops upstream of AS43641 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

152

adjacent networks

Upstreams
2516%
Peers
11475%
Downstreams
139%

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

Upstreams of AS43641
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer17,226130
AS174Cogent Communications, LLCUSPeer2,26934
AS3223Voxility LLPGBPeer1,63181
AS3257GTT Communications Inc.USPeer1,48979
AS25091IP-Max SACHPeer6393
AS9002RETN LimitedGBPeer5262
AS8298IPng Networks GmbHCHPeer3882
AS39122Blacknight Internet Solutions LimitedIEPeer3762
AS35280F5 Networks SARLFRPeer3762
AS58511Swoop (Anycast Global Backbone)AUPeer3762

Prefixes

All 136

The largest blocks AS43641 originates, widest first.

Largest prefixes originated by AS43641
PrefixAddressesVisibility
85.137.54.0/2351281/81
85.137.62.0/2351281/81
138.226.242.0/2351281/81
138.226.250.0/2351281/81
176.97.126.0/2351281/81
185.189.246.0/2351281/81
195.160.220.0/2351281/81
195.160.222.0/2351281/81
212.86.120.0/2351281/81
212.86.126.0/2351281/81

Routing health

How AS43641'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

  • Valid94.1%128
  • Invalid0.0%0
  • No ROA5.9%8

Propagation

  • Globally propagated90% of full-feed peers or more100.0%136
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 127 prefixes

IPv6 — 9 prefixes

  • /324.3B × /6455.6%5
  • /36268M × /6422.2%2
  • /441M × /6422.2%2

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.