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Autonomous System

AS38965 · Rick van der Sterren trading as HostIn

Overview

AS38965 is announced on the Internet: RIPE RIS route collectors currently see 3 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 768 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 45 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are Netrouting B.V. (AS6206), Serverius Holding B.V. (AS50673), and MaxiTEL Telecom B.V. (AS61349). AS38965 was assigned by RIPE NCC, and its registration country is Netherlands.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:58 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 157.173.78.1, the first address of 157.173.78.0/24. 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 (3 prefixes)

PrefixAddresses
157.173.78.0/24256
185.231.57.0/24256
193.178.197.0/24256

IPv6 prefixes (2 prefixes)

Prefix
2a04:4345:10::/44
2a10:b880::/32

Neighbours

Upstreams (transit or peers) (45)

ASNetworkVisibility
AS6206Netrouting B.V.254
AS50673Serverius Holding B.V.114
AS61349MaxiTEL Telecom B.V.24
AS6939Hurricane Electric LLC15
AS5405Inter.link GmbH5
AS25091IP-Max SA4
AS34019Hivane Association4
AS20764CJSC RASCOM3
AS35280F5 Networks SARL3
AS37468Angola Cables3
AS3216PJSC "Vimpelcom"2
AS7195EDGEUNO S.A.S2
AS8298IPng Networks GmbH2
AS12637SEEWEB s.r.l.2
AS12779IT.Gate S.p.A.2
AS14840BR.Digital Telecom2
AS15576NTS workspace AG2
AS22356Durand do Brasil Ltda2
AS24961WIIT AG2
AS29075IELO-LIAZO SERVICES SAS2
AS34177Celeste SAS2
AS34927iFog GmbH2
AS37100SEACOM Limited2
AS37497Network Platforms (PTY) LTD2
AS3935131173 Services AB2
AS41327Fiber Telecom S.p.A.2
AS47147Anexia Cloud Solutions GmbH2
AS48362Stadtwerke Feldkirch2
AS62000SERVERD SAS2
AS1031-1

The 30 most visible of 45.

Downstreams (customers) (0)

None seen.

54 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.