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Autonomous System

AS49870 ยท Alsycon B.V.

Overview

AS49870 is announced on the Internet: RIPE RIS route collectors currently see 23 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 8,704 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 32 upstream neighbours (transit providers or peers) and 6 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Cogent Communications, LLC (AS174), and UAB "Bite Lietuva" (AS13194). AS49870 was assigned by RIPE NCC, and its registration country is Netherlands.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 160.119.64.1, the first address of 160.119.64.0/22. 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 (23 prefixes)

PrefixAddresses
2.56.167.0/24256
45.80.36.0/23512
45.81.22.0/23512
45.95.144.0/23512
45.95.146.0/24256
45.95.147.0/24256
45.140.222.0/23512
77.83.240.0/24256
89.116.202.0/24256
89.190.156.0/24256
89.190.159.0/24256
160.119.64.0/221,024
160.119.69.0/24256
160.119.71.0/24256
160.119.74.0/24256
160.119.75.0/24256
160.119.76.0/23512
160.119.78.0/24256
169.239.130.0/24256
185.224.128.0/24256
194.50.16.0/24256
196.61.64.0/221,024
212.107.12.0/24256

IPv6 prefixes (1 prefix)

Prefix
2a0e:3980::/29

Neighbours

Upstreams (transit or peers) (32)

ASNetworkVisibility
AS6939Hurricane Electric LLC792
AS174Cogent Communications, LLC654
AS13194UAB "Bite Lietuva"406
AS3257GTT Communications Inc.288
AS57717FiberXpress BV266
AS9002RETN Limited238
AS3303Swisscom (Schweiz) AG21
AS5405Inter.link GmbH20
AS25091IP-Max SA19
AS34019Hivane Association13
AS8298IPng Networks GmbH12
AS3935131173 Services AB12
AS1103-11
AS50629LWLcom GmbH11
AS34927iFog GmbH8
AS3214xTom GmbH7
AS14840BR.Digital Telecom7
AS28917Fiord Networks, UAB7
AS61049Exascale Ltd7
AS29075IELO-LIAZO SERVICES SAS6
AS56911Warian S.R.L.6
AS62000SERVERD SAS6
AS286GTT Communications Inc.5
AS6204INTERKVM HOST SRL3
AS20766Association "Gitoyen"3
AS31500Global Network Management Inc3
AS39686-3
AS9498BHARTI Airtel Ltd.2
AS22356Durand do Brasil Ltda2
AS41441Serverius Holding B.V.2

The 30 most visible of 32.

Downstreams (customers) (6)

ASNetworkVisibility
AS49305Alsycon B.V.455
AS7489HostUS448
AS218859IT HELP LCC269
AS209101ipvendettainc IP Vendetta Inc.264
AS208911Alsycon B.V.253
AS51942EK-Media B.V.86

22 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.