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Autonomous System

AS50309 ยท Arcadiz Telecom NV

Overview

AS50309 is announced on the Internet: RIPE RIS route collectors currently see 7 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 6,144 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 51 upstream neighbours (transit providers or peers) and 26 downstream neighbours (customers or networks it carries). Its most visible upstreams are F5 Networks SARL (AS35280), Eurofiber Nederland BV (AS39686), and Arelion Sweden AB (AS1299). AS50309 was assigned by RIPE NCC, and its registration country is Belgium.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 9:51 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 46.182.192.1, the first address of 46.182.192.0/21. 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 (7 prefixes)

PrefixAddresses
46.182.192.0/212,048
94.142.132.0/23512
141.193.58.0/24256
185.160.128.0/221,024
185.167.48.0/221,024
185.221.184.0/221,024
217.18.89.0/24256

IPv6 prefixes (1 prefix)

Prefix
2a0b:5e00::/29

Neighbours

Upstreams (transit or peers) (51)

ASNetworkVisibility
AS35280F5 Networks SARL4,745
AS39686Eurofiber Nederland BV782
AS1299Arelion Sweden AB682
AS174Cogent Communications, LLC615
AS6939Hurricane Electric LLC498
AS25091IP-Max SA113
AS20764CJSC RASCOM99
AS50304Blix Solutions AS91
AS34019Hivane Association78
AS5405Inter.link GmbH75
AS8298IPng Networks GmbH65
AS3303Swisscom (Schweiz) AG60
AS41327Fiber Telecom S.p.A.56
AS24961WIIT AG55
AS50629LWLcom GmbH41
AS6461Zayo Bandwidth38
AS28917Fiord Networks, UAB38
AS14840BR.Digital Telecom35
AS56655-34
AS1103SURF B.V.33
AS9044-30
AS3935131173 Services AB30
AS58057-29
AS6204INTERKVM HOST SRL28
AS12552GlobalConnect AB26
AS20766Association "Gitoyen"21
AS6663Euroweb Romania S.R.L.16
AS8218Zayo Infrastructure France SA10
AS12779IT.Gate S.p.A.9
AS9009M247 Europe SRL7

The 30 most visible of 51.

Downstreams (customers) (26)

ASNetworkVisibility
AS42160DC STAR nv2,075
AS215694Amptec B.V.449
AS25194AGC Glass Europe441
AS199796Mediahuis Technology & Product Studio NV416
AS210017DCHasselt STEL bvba361
AS210358imec IMEC (Interuniversitair Micro-Electronica Centrum) VZW359
AS215079Italique SRL339
AS200353Opgroeien regie335
AS43751Arkea Direct Bank SA301
AS203944NTT Luxembourg PSF S.A.277
AS202598-271
AS35660-263
AS205401-263
AS210196-255
AS202495-254
AS210088-253
AS15776-223
AS202191-215
AS21315-208
AS31511-204
AS199777-204
AS211601-201
AS204182-186
AS199670DNS-Belgium VZW185
AS211435-141
AS196755-113

77 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.