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Autonomous System

AS43641 · SOLLUTIUM EU Sp z.o.o.

Overview

AS43641 is announced on the Internet: RIPE RIS route collectors currently see 127 IPv4 prefixes and 9 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 35,584 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 37 upstream neighbours (transit providers or peers) and 12 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Voxility LLP (AS3223), and Cogent Communications, LLC (AS174). AS43641 was assigned by RIPE NCC, and its registration country is Poland.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 8:25 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 85.137.54.1, the first address of 85.137.54.0/23. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (127 prefixes)

PrefixAddresses
23.230.101.0/24256
31.42.176.0/24256
31.42.177.0/24256
31.58.141.0/24256
37.16.75.0/24256
45.11.56.0/24256
45.11.59.0/24256
45.133.216.0/24256
45.134.174.0/24256
45.134.175.0/24256
45.135.180.0/24256
74.0.19.0/24256
79.172.218.0/24256
82.158.195.0/24256
85.137.48.0/24256
85.137.52.0/24256
85.137.53.0/24256
85.137.54.0/23512
85.137.56.0/24256
85.137.58.0/24256
85.137.59.0/24256
85.137.61.0/24256
85.137.62.0/23512
85.209.222.0/24256
89.35.131.0/24256
89.42.91.0/24256
91.202.4.0/24256
91.202.5.0/24256
91.222.173.0/24256
91.224.10.0/24256
91.224.11.0/24256
91.234.198.0/24256
91.234.199.0/24256
91.239.76.0/24256
93.115.172.0/24256
95.128.156.0/24256
102.135.7.0/24256
104.165.1.0/24256
104.165.127.0/24256
109.234.214.0/24256
130.49.36.0/24256
130.49.107.0/24256
130.49.131.0/24256
138.226.240.0/24256
138.226.242.0/23512
138.226.246.0/24256
138.226.247.0/24256
138.226.250.0/23512
138.249.6.0/24256
138.249.134.0/24256
151.245.5.0/24256
151.245.6.0/24256
151.245.96.0/24256
155.212.86.0/24256
155.212.100.0/24256
155.212.120.0/24256
176.97.125.0/24256
176.97.126.0/23512
178.83.75.0/24256
179.61.144.0/24256
185.36.124.0/24256
185.189.246.0/23512
185.254.199.0/24256
188.119.113.0/24256
189.74.113.0/24256
191.44.48.0/24256
191.44.49.0/24256
191.44.50.0/24256
191.44.51.0/24256
191.44.52.0/24256
191.44.53.0/24256
191.44.54.0/24256
191.44.55.0/24256
191.44.56.0/24256
191.44.57.0/24256
191.44.58.0/24256
191.44.59.0/24256
191.44.60.0/24256
191.44.61.0/24256
191.44.62.0/24256
191.44.63.0/24256
194.42.199.0/24256
194.58.47.0/24256
194.87.153.0/24256
195.26.86.0/24256
195.26.87.0/24256
195.58.57.0/24256
195.66.212.0/24256
195.66.213.0/24256
195.160.220.0/23512
195.160.222.0/23512
195.216.181.0/24256
195.216.189.0/24256
201.50.96.0/24256
201.50.97.0/24256
201.50.98.0/24256
201.50.99.0/24256
201.50.100.0/24256
201.50.101.0/24256
201.50.102.0/24256

Showing the first 100 of 127, in address order. Complete list on RIPEstat

IPv6 prefixes (9 prefixes)

Prefix
2602:fa02:4b0::/44
2a06:9f47::/32
2a09:2dc1::/32
2a0d:d940:160::/44
2a10:fa82:d000::/36
2a11:6100::/32
2a11:6101::/32
2a13:e104::/32
2a14:7586:7000::/36

Neighbours

Upstreams (transit or peers) (37)

ASNetworkVisibility
AS6939Hurricane Electric LLC2,757
AS3223Voxility LLP539
AS174Cogent Communications, LLC447
AS3257GTT Communications Inc.398
AS1103SURF B.V.21
AS8298IPng Networks GmbH21
AS34019Hivane Association14
AS35280F5 Networks SARL14
AS50629LWLcom GmbH14
AS5405Inter.link GmbH11
AS3935131173 Services AB10
AS286GTT Communications Inc.9
AS34177Celeste SAS9
AS25091IP-Max SA8
AS3216PJSC "Vimpelcom"7
AS50673-7
AS9002RETN Limited6
AS24961WIIT AG6
AS29075IELO-LIAZO SERVICES SAS6
AS33891Core-Backbone GmbH6
AS47147Anexia Cloud Solutions GmbH6
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH5
AS6797GlobalConnect AB5
AS29632Netassist International EOOD5
AS37468Angola Cables5
AS6204INTERKVM HOST SRL4
AS9044-4
AS37100SEACOM Limited4
AS6777-3
AS39686Eurofiber Nederland BV3

The 30 most visible of 37.

Downstreams (customers) (12)

ASNetworkVisibility
AS30860Virtual Systems LLC541
AS58285Sixnet Operation Ltd314
AS198231Sixnet Operation Ltd279
AS214300Layer 4 Group LLC273
AS214168Sixnet Operation Ltd254
AS216157Sixnet Operation Ltd254
AS33042Netiface LLC253
AS213650CDN Infra Limited253
AS215158Sixnet Operation Ltd252
AS215310Pfcloud UG (haftungsbeschrankt)252
AS211019-251
AS202319-238

56 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.