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Autonomous System

AS50533 · I.T.E.N.O.S. International Telecom Network Operation Services GmbH

Overview

AS50533 is announced on the Internet: RIPE RIS route collectors currently see 9 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 19,968 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 71 upstream neighbours (transit providers or peers) and 7 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), NTT America, Inc. (AS2914), and Hurricane Electric LLC (AS6939). AS50533 was assigned by RIPE NCC, and its registration country is Germany.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:54 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 134.101.64.1, the first address of 134.101.64.0/19. 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 (9 prefixes)

PrefixAddresses
134.101.64.0/198,192
134.101.64.0/24256
134.101.96.0/204,096
134.101.112.0/212,048
145.14.224.0/204,096
145.14.224.0/23512
185.160.248.0/221,024
192.109.121.0/24256
192.109.122.0/24256

IPv6 prefixes (2 prefixes)

Prefix
2a00:17f1::/32
2a00:17f4::/32

Neighbours

Upstreams (transit or peers) (71)

ASNetworkVisibility
AS1299Arelion Sweden AB476
AS2914NTT America, Inc.275
AS6939Hurricane Electric LLC224
AS3356Level 3 Parent, LLC116
AS3320Deutsche Telekom AG80
AS48918Globalways GmbH50
AS6695DE-CIX Management GmbH47
AS5405Inter.link GmbH28
AS34549meerfarbig GmbH & Co. KG25
AS25091IP-Max SA23
AS6777-22
AS35625Eurofiber France SAS21
AS34019Hivane Association20
AS9002RETN Limited17
AS14840BR.Digital Telecom16
AS20485Joint Stock Company TransTeleCom16
AS20764CJSC RASCOM16
AS29691Nine Internet Solutions AG16
AS34927iFog GmbH16
AS48362Stadtwerke Feldkirch16
AS8455atom86 BV15
AS37497Network Platforms (PTY) LTD15
AS39351-15
AS12779IT.Gate S.p.A.14
AS24961WIIT AG14
AS34177Celeste SAS14
AS41327Fiber Telecom S.p.A.14
AS61049Exascale Ltd14
AS4230CLARO S.A.13
AS35280F5 Networks SARL13

The 30 most visible of 71.

Downstreams (customers) (7)

ASNetworkVisibility
AS33808I.T.E.N.O.S. International Telecom Network Operation Services GmbH376
AS205427i22 Digitalagentur GmbH374
AS205321itk Medialine Communications GmbH372
AS44018activelogistics active logistics GmbH321
AS16148NetWork Team GmbH267
AS198724quartermaster Quarter Master SAS261
AS209724Foconis Payment GmbH102

78 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.