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Autonomous System

AS21449 ยท Etat de Geneve

Overview

AS21449 is announced on the Internet: RIPE RIS route collectors currently see 18 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 135,424 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 28 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are IP-Max SA (AS25091), CERN - European Organization for Nuclear Research (AS513), and Hurricane Electric LLC (AS6939). AS21449 was assigned by RIPE NCC, and its registration country is Switzerland.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 9:52 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 159.241.0.1, the first address of 159.241.0.0/16. 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 (18 prefixes)

PrefixAddresses
91.217.128.0/24256
159.241.0.0/1665,536
159.241.0.0/1732,768
159.241.128.0/1732,768
160.53.0.0/1665,536
160.53.0.0/1732,768
160.53.128.0/1732,768
160.53.136.0/24256
160.53.143.0/24256
160.53.144.0/23512
160.53.186.0/24256
160.53.247.0/24256
160.53.248.0/24256
160.53.252.0/24256
193.134.176.0/204,096
193.134.176.0/212,048
193.134.183.0/24256
193.134.184.0/212,048

IPv6 prefixes (1 prefix)

Prefix
2a07:2911::/32

Neighbours

Upstreams (transit or peers) (28)

ASNetworkVisibility
AS25091IP-Max SA1,073
AS513CERN - European Organization for Nuclear Research55
AS6939Hurricane Electric LLC43
AS4230CLARO S.A.3
AS5405Inter.link GmbH2
AS7195EDGEUNO S.A.S2
AS12779IT.Gate S.p.A.2
AS14840BR.Digital Telecom2
AS34549meerfarbig GmbH & Co. KG2
AS34927iFog GmbH2
AS37100SEACOM Limited2
AS41327Fiber Telecom S.p.A.2
AS47147-2
AS48362Stadtwerke Feldkirch2
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH1
AS6204INTERKVM HOST SRL1
AS6663Euroweb Romania S.R.L.1
AS6695-1
AS6797GlobalConnect AB1
AS7713-1
AS12577MMC GmbH1
AS15576NTS workspace AG1
AS24889-1
AS35625Eurofiber France SAS1
AS37468Angola Cables1
AS55850Mercury NZ Limited1
AS60171AFR-IX TELECOM S.A.1
AS212024Marc Schmitt1

Downstreams (customers) (0)

None seen.

53 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.