Skip to content

Autonomous System

AS208453 · Johan Karlsson trading as SweHosting

Overview

AS208453 is announced on the Internet: RIPE RIS route collectors currently see 5 IPv4 prefixes and 10 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 1,280 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 25 upstream neighbours (transit providers or peers) and 16 downstream neighbours (customers or networks it carries). Its most visible upstreams are Obenet AB (AS3399), Datacamp Limited (AS60068), and Eranium B.V. (AS35133). AS208453 was assigned by RIPE NCC, and its registration country is Sweden.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:11 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 193.142.4.1, the first address of 193.142.4.0/24. 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 (5 prefixes)

PrefixAddresses
193.142.4.0/24256
193.181.23.0/24256
193.181.29.0/24256
193.181.243.0/24256
193.181.244.0/24256

IPv6 prefixes (10 prefixes)

Prefix
2a07:54c1:f000::/36
2a07:54c4:1761::/48
2a12:bec0:2d0::/48
2a12:bec0:2d2::/48
2a12:bec0:2da::/48
2a12:bec0:2df::/48
2a14:1ec7:f000::/40
2a14:1ec7:f500::/40
2a14:1ec7:fffd::/48
2a14:7583:5900::/40

Neighbours

Upstreams (transit or peers) (25)

ASNetworkVisibility
AS3399Obenet AB2,208
AS60068Datacamp Limited1,265
AS35133Eranium B.V.1,097
AS6939Hurricane Electric LLC797
AS3935131173 Services AB27
AS24482SG.GS20
AS20473The Constant Company, LLC18
AS12859BIT BV16
AS41327Fiber Telecom S.p.A.15
AS20764CJSC RASCOM9
AS24961WIIT AG6
AS50304Blix Solutions AS6
AS50629LWLcom GmbH4
AS56911Warian S.R.L.4
AS61049Exascale Ltd4
AS1031PEER 1031 LLC3
AS6204INTERKVM HOST SRL3
AS6663-3
AS8298IPng Networks GmbH2
AS20326TeraSwitch Networks Inc.2
AS34927iFog GmbH2
AS56655Gigahost AS2
AS47498FogIXP iFog GmbH1
AS205794JINZE YANG1
AS209022Tschajera Limited1

Downstreams (customers) (16)

ASNetworkVisibility
AS213998Equitia Piotr R. Antos trading as EQUITIA845
AS215467Skhron Skhron OU818
AS214639TAKEHOST OU489
AS202817Gabriel Engvall454
AS52025ParadoxNetworks Limited364
AS60900SsmidgeTechnologies Adrian Trifonov trading as Ssmidge Technologies362
AS210667Adam Goodenough255
AS205163Sergey Proshutinskiy253
AS200242Ember Ana Reimer250
AS214365HypefoxNet Hypefox AB248
AS207306-230
AS205848-198
AS214205Cristian Tudor Marcus105
AS219367-21
AS208471-13
AS57851-9

10 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.