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Autonomous System

AS15766 ยท Domicilium (IOM) Limited

Overview

AS15766 is announced on the Internet: RIPE RIS route collectors currently see 15 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 16,384 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 39 upstream neighbours (transit providers or peers) and 4 downstream neighbours (customers or networks it carries). Its most visible upstreams are Cogent Communications, LLC (AS174), IDDQD-AS (AS1273), and Hurricane Electric LLC (AS6939). AS15766 was assigned by RIPE NCC, and its registration country is Isle of Man.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:52 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 83.218.0.1, the first address of 83.218.0.0/19. 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 (15 prefixes)

PrefixAddresses
81.88.160.0/204,096
81.88.161.0/24256
81.88.162.0/24256
81.88.166.0/24256
81.88.167.0/24256
81.88.172.0/24256
83.218.0.0/198,192
83.218.1.0/24256
83.218.15.0/24256
83.218.20.0/23512
83.218.23.0/24256
217.23.160.0/204,096
217.23.160.0/24256
217.23.163.0/24256
217.23.175.0/24256

IPv6 prefixes (1 prefix)

Prefix
2a02:2318::/32

Neighbours

Upstreams (transit or peers) (39)

ASNetworkVisibility
AS174Cogent Communications, LLC467
AS1273IDDQD-AS158
AS6939Hurricane Electric LLC134
AS25091IP-Max SA34
AS33891Core-Backbone GmbH24
AS34549meerfarbig GmbH & Co. KG24
AS5405Inter.link GmbH15
AS50304Blix Solutions AS15
AS9002RETN Limited14
AS34927iFog GmbH12
AS29075IELO-LIAZO SERVICES SAS10
AS34177Celeste SAS10
AS37497Network Platforms (PTY) LTD10
AS35280F5 Networks SARL9
AS41327Fiber Telecom S.p.A.9
AS4637Telstra Global8
AS12779IT.Gate S.p.A.8
AS14840BR.Digital Telecom8
AS48362Stadtwerke Feldkirch8
AS3214xTom GmbH7
AS3216PJSC "Vimpelcom"6
AS20562Broadband Hosting B.V.6
AS3741Dimension Data5
AS4455IX Reach Ltd5
AS6204INTERKVM HOST SRL5
AS6797GlobalConnect AB5
AS7195EDGEUNO S.A.S5
AS15802Emirates Integrated Telecommunications Company PJSC5
AS15958CETIN Ltd. Belgrade5
AS1267WIND TRE S.P.A.4

The 30 most visible of 39.

Downstreams (customers) (4)

ASNetworkVisibility
AS36983Osiris Trading (PTY) LTD267
AS34738Webhost Limited186
AS44481Professional Data Management Services Limited123
AS212873Hobarton Hobarton Limited96

35 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.