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Autonomous System

AS8437 · Hutchison Drei Austria GmbH

Overview

AS8437 is announced on the Internet: RIPE RIS route collectors currently see 80 IPv4 prefixes and 43 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 550,656 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 3 upstream neighbours (transit providers or peers) and 53 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hutchison Drei Austria GmbH (AS25255), Deutsche Telekom AG (AS3320), and AS65301. AS8437 was assigned by RIPE NCC, and its registration country is Austria.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:46 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 62.218.0.1, the first address of 62.218.0.0/16. 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 (80 prefixes)

PrefixAddresses
46.57.0.0/1732,768
46.57.80.0/212,048
46.57.88.0/212,048
46.57.96.0/212,048
46.57.104.0/221,024
46.57.112.0/212,048
46.57.120.0/221,024
46.57.124.0/221,024
62.116.0.0/198,192
62.116.64.0/1816,384
62.218.0.0/1665,536
62.218.35.0/24256
62.218.164.0/24256
62.218.165.0/24256
62.218.168.0/24256
62.218.169.0/24256
62.218.174.0/24256
62.218.179.0/24256
62.218.202.0/24256
62.218.205.0/24256
77.118.0.0/1665,536
77.118.14.0/24256
77.118.17.0/24256
77.118.32.0/212,048
77.118.48.0/212,048
77.118.56.0/212,048
77.118.104.0/221,024
77.118.108.0/221,024
77.118.112.0/204,096
77.118.128.0/212,048
77.118.136.0/212,048
77.118.160.0/204,096
77.118.176.0/204,096
77.118.192.0/204,096
77.118.208.0/204,096
77.118.224.0/212,048
77.118.232.0/212,048
77.118.240.0/204,096
77.119.64.0/1816,384
77.119.80.0/212,048
77.119.88.0/212,048
77.119.96.0/221,024
77.119.112.0/221,024
78.142.128.0/1816,384
81.189.0.0/1665,536
86.59.0.0/1732,768
91.186.128.0/198,192
91.199.5.0/24256
91.199.145.0/24256
91.220.2.0/24256
178.114.0.0/1665,536
178.114.92.0/221,024
178.114.96.0/204,096
178.114.112.0/204,096
178.114.128.0/212,048
178.114.144.0/212,048
178.114.152.0/212,048
178.114.160.0/204,096
178.114.176.0/204,096
178.114.192.0/212,048
178.114.208.0/212,048
178.114.216.0/212,048
178.114.224.0/204,096
178.114.240.0/204,096
178.115.96.0/198,192
178.115.96.0/24256
178.115.98.0/24256
185.245.65.0/24256
188.118.192.0/1816,384
193.25.199.0/24256
193.164.15.0/24256
194.62.237.0/24256
195.70.224.0/198,192
195.96.0.0/198,192
195.248.32.0/198,192
212.27.64.0/1816,384
212.152.128.0/1732,768
213.90.0.0/1732,768
213.129.224.0/198,192
213.235.192.0/1816,384

IPv6 prefixes (43 prefixes)

Prefix
2001:858::/32
2001:938::/32
2001:938:2020::/45
2001:938:2028::/45
2001:938:2030::/45
2001:938:2038::/45
2001:938:2040::/45
2001:938:4000::/48
2001:938:4002::/48
2001:938:4003::/48
2001:938:4004::/48
2001:938:4007::/48
2001:938:400c::/48
2001:938:400d::/48
2001:938:400f::/48
2001:938:4011::/48
2001:938:4014::/48
2001:938:4016::/48
2001:938:4017::/48
2001:938:4018::/48
2001:938:4029::/48
2001:938:402a::/48
2001:938:402b::/48
2001:938:402e::/48
2001:938:4032::/48
2001:938:4034::/48
2001:938:4035::/48
2001:938:4036::/48
2001:938:403a::/48
2001:938:403f::/48
2001:938:4040::/48
2001:938:4042::/48
2001:938:4043::/48
2001:938:4044::/48
2001:938:4046::/48
2001:938:4047::/48
2001:938:4053::/48
2001:938:4054::/48
2001:938:4055::/48
2001:938:4056::/48
2001:938:4058::/48
2001:938:405a::/48
2001:938:405c::/48

Neighbours

Upstreams (transit or peers) (3)

ASNetworkVisibility
AS25255Hutchison Drei Austria GmbH8,411
AS3320Deutsche Telekom AG89
AS65301-5

Downstreams (customers) (53)

ASNetworkVisibility
AS212796SmartFiber GmbH443
AS25126TIWAG-Tiroler Wasserkraft AG355
AS47477REWE International Dienstleistungs GmbH326
AS202549Sattler AG293
AS197458Organization of the Petroleum Exporting Countries291
AS199437Verband der Versicherungsunternehmen Oesterreichs280
AS44825Oesterreichisches Rotes Kreuz, Landesverband Oberoesterreich279
AS13292Willibald Hambammer trading as BK-DAT Electronics e.U.278
AS13298SOS-Kinderdorf International277
AS42114PG Austria GmbH277
AS39285-276
AS40982-276
AS202856-276
AS209021-276
AS24656-275
AS213102-273
AS200247-269
AS21039-268
AS207962-265
AS21433AccentureFSSC Accenture UK Limited252
AS205269-222
AS210635-186
AS216037-169
AS25056-156
AS204441-140
AS212813-108
AS25445-77
AS21660-73
AS62385-53
AS201981-52

The 30 most visible of 53.

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.