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Autonomous System

AS5404 ยท conova communications GmbH

Overview

AS5404 is announced on the Internet: RIPE RIS route collectors currently see 50 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 11,776 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 10 upstream neighbours (transit providers or peers) and 12 downstream neighbours (customers or networks it carries). Its most visible upstreams are Core-Backbone GmbH (AS33891), Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH (AS1764), and T-Mobile Austria GmbH (AS8412). AS5404 was assigned by RIPE NCC, and its registration country is Austria.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:52 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 217.196.144.1, the first address of 217.196.144.0/20. 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 (50 prefixes)

PrefixAddresses
5.252.12.0/221,024
5.252.12.0/24256
5.252.13.0/24256
5.252.14.0/24256
5.252.15.0/24256
77.83.108.0/221,024
77.83.109.0/24256
77.83.110.0/24256
77.83.111.0/24256
91.223.147.0/24256
149.3.164.0/221,024
149.3.166.0/24256
149.3.167.0/24256
185.69.160.0/221,024
185.69.160.0/24256
185.69.161.0/24256
185.69.162.0/24256
185.69.163.0/24256
185.174.204.0/221,024
185.174.204.0/24256
185.174.205.0/24256
185.174.206.0/24256
185.174.207.0/24256
194.165.52.0/24256
195.192.208.0/212,048
195.192.208.0/24256
195.192.209.0/24256
195.192.210.0/24256
195.192.211.0/24256
195.192.212.0/24256
195.192.213.0/24256
195.192.214.0/24256
195.192.215.0/24256
217.196.144.0/204,096
217.196.144.0/24256
217.196.145.0/24256
217.196.146.0/24256
217.196.147.0/24256
217.196.148.0/24256
217.196.149.0/24256
217.196.150.0/24256
217.196.151.0/24256
217.196.152.0/24256
217.196.153.0/24256
217.196.154.0/24256
217.196.155.0/24256
217.196.156.0/24256
217.196.157.0/24256
217.196.158.0/24256
217.196.159.0/24256

IPv6 prefixes (1 prefix)

Prefix
2a02:16a8::/32

Neighbours

Upstreams (transit or peers) (10)

ASNetworkVisibility
AS33891Core-Backbone GmbH1,825
AS1764Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH1,734
AS8412T-Mobile Austria GmbH55
AS4230CLARO S.A.11
AS34549meerfarbig GmbH & Co. KG9
AS14840BR.Digital Telecom5
AS28716Retelit Digital Services S.p.A.3
AS55850Mercury NZ Limited3
AS8445SALZBURG AG fur Energie, Verkehr und Telekommunikation2
AS15958CETIN Ltd. Belgrade1

Downstreams (customers) (12)

ASNetworkVisibility
AS57260feratel Schweiz AG675
AS202928Armin Fisslthaler458
AS48151Red Bull GmbH429
AS62149Verein Kabel-TV Gerlos404
AS38967Wirtschaftskammer Oesterreich274
AS44392Salzburger Flughafen GmbH273
AS213084Four Telecom Services GmbH & Co KG266
AS34885Erzdioezese Salzburg215
AS197999Michael Gamsjaeger87
AS30971nic.at GmbH60
AS29085-30
AS197000Reseaux IP Europeens Network Coordination Centre (RIPE NCC)7

21 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.