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Autonomous System

AS51765 · Oy Crea Nova Hosting Solution Ltd

Overview

AS51765 is announced on the Internet: RIPE RIS route collectors currently see 78 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 25,600 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 23 upstream neighbours (transit providers or peers) and 51 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), RETN Limited (AS9002), and Arelion Sweden AB (AS1299). AS51765 was assigned by RIPE NCC, and its registration country is Finland.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:59 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 50.114.220.1, the first address of 50.114.220.0/22. 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 (78 prefixes)

PrefixAddresses
45.66.160.0/24256
45.66.161.0/24256
45.66.162.0/24256
45.66.163.0/24256
45.86.66.0/24256
45.128.60.0/24256
45.136.117.0/24256
45.136.124.0/24256
45.136.125.0/24256
45.136.126.0/24256
45.136.127.0/24256
45.149.115.0/24256
50.114.220.0/221,024
77.83.247.0/24256
77.90.176.0/24256
77.90.187.0/24256
81.181.173.0/24256
82.21.220.0/24256
82.21.233.0/24256
82.21.249.0/24256
82.22.230.0/24256
82.22.231.0/24256
82.22.232.0/24256
82.22.249.0/24256
82.23.208.0/24256
82.23.239.0/24256
82.24.208.0/24256
82.24.211.0/24256
82.24.213.0/24256
82.24.218.0/24256
82.24.228.0/24256
82.24.236.0/24256
82.24.249.0/24256
82.25.217.0/24256
82.25.249.0/24256
82.26.225.0/24256
82.26.229.0/24256
82.27.223.0/24256
82.29.213.0/24256
82.29.237.0/24256
82.29.249.0/24256
82.115.220.0/24256
85.208.119.0/24256
85.209.155.0/24256
85.209.156.0/24256
89.125.108.0/221,024
89.125.204.0/221,024
91.132.197.0/24256
91.221.66.0/23512
91.233.116.0/23512
94.26.33.0/24256
94.26.34.0/24256
103.99.33.0/24256
103.99.34.0/24256
103.101.88.0/221,024
153.76.202.0/24256
164.138.12.0/221,024
166.0.115.0/24256
166.0.222.0/24256
185.77.216.0/23512
185.77.218.0/23512
185.103.110.0/24256
185.108.107.0/24256
185.112.82.0/24256
185.117.118.0/24256
185.204.1.0/24256
185.212.149.0/24256
185.217.196.0/24256
185.221.163.0/24256
185.247.140.0/24256
185.247.141.0/24256
193.161.204.0/24256
193.161.246.0/24256
193.161.247.0/24256
194.34.132.0/221,024
213.209.132.0/24256
213.209.148.0/24256
217.22.227.0/24256

IPv6 prefixes (2 prefixes)

Prefix
2a0c:f040::/48
2a10:9681::/32

Neighbours

Upstreams (transit or peers) (23)

ASNetworkVisibility
AS6939Hurricane Electric LLC8,719
AS9002RETN Limited2,671
AS1299Arelion Sweden AB1,347
AS174Cogent Communications, LLC1,153
AS25091IP-Max SA138
AS3935131173 Services AB101
AS49434FBW NETWORKS SAS97
AS47692Nessus GmbH96
AS50629LWLcom GmbH95
AS50673Serverius Holding B.V.57
AS8218Zayo Infrastructure France SA56
AS15958CETIN Ltd. Belgrade56
AS33891-55
AS42295-50
AS41327Fiber Telecom S.p.A.49
AS56911Warian S.R.L.48
AS6204INTERKVM HOST SRL47
AS9198JSC Kazakhtelecom46
AS62000SERVERD SAS45
AS60171AFR-IX TELECOM S.A.44
AS56655Gigahost AS9
AS6663-3
AS137409GSL Networks Pty LTD3

Downstreams (customers) (51)

ASNetworkVisibility
AS214602FIRST SERVER LIMITED1,162
AS204785TakeHost Raul Ghita trading as 'Ghita Telekom'514
AS216070rcstechnologies RCS Technologies FZE LLC487
AS212706LIVI HOSTING LTD484
AS216300Closed Joint Stock Company "AbkhazMedia"415
AS215540GLOBAL CONNECTIVITY SOLUTIONS LLP392
AS26383Baxet Group Inc.389
AS50053Anton Levin389
AS136258BrainStorm Network, Inc376
AS219498Artem Kovalchuk376
AS213954-318
AS41745Baykov Ilya Sergeevich290
AS43444-284
AS198130-283
AS200173-283
AS206491-283
AS210751-283
AS35830-282
AS59651-282
AS198180-282
AS202147-282
AS203872-282
AS204603-282
AS213459-282
AS35624-281
AS210006-281
AS214238-281
AS216024ALEKSEI FEDOROV PR KRUSEVAC281
AS218964-281
AS219141-281

The 30 most visible of 51.

15 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.