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Autonomous System

AS5518 ยท SIA Tet

Overview

AS5518 is announced on the Internet: RIPE RIS route collectors currently see 21 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 98,816 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 2 upstream neighbours (transit providers or peers) and 22 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299) and SIA Tet (AS12578). AS5518 was assigned by RIPE NCC, and its registration country is Latvia.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:56 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 80.233.128.1, the first address of 80.233.128.0/17. 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 (21 prefixes)

PrefixAddresses
62.63.128.0/212,048
62.63.136.0/221,024
62.63.144.0/204,096
62.63.160.0/198,192
78.28.192.0/1816,384
78.28.195.0/24256
78.28.211.0/24256
78.28.212.0/24256
78.28.223.0/24256
78.28.240.0/24256
78.28.244.0/24256
78.154.128.0/198,192
80.233.128.0/1732,768
80.233.146.0/24256
80.233.168.0/24256
91.231.68.0/24256
185.87.204.0/221,024
194.19.224.0/198,192
195.10.216.0/24256
213.175.64.0/1816,384
213.175.75.0/24256

IPv6 prefixes (2 prefixes)

Prefix
2a02:16d8::/32
2a02:16d8:104::/48

Neighbours

Upstreams (transit or peers) (2)

ASNetworkVisibility
AS1299Arelion Sweden AB3,713
AS12578SIA Tet108

Downstreams (customers) (22)

ASNetworkVisibility
AS34001SIA LIVAS NET329
AS51894Mikrotikls SIA328
AS2877LSC SIA247
AS44483Elektrons K SIA247
AS211424SIA "LSK Studios"247
AS15827SIA "Biznesa augstskola Turiba"246
AS25107AS "Industra Bank"246
AS35809ASDivi SIA "DIVI Grupa"246
AS47499SIA ILVA Ltd.246
AS199577Digimoney-SIA246
AS197616-220
AS35407-125
AS42663-121
AS41563-86
AS197325-71
AS60066-64
AS41898-38
AS51955Institute of Mathematics and Computer Science of University of Latvia34
AS215537-14
AS207066-13
AS15392-5
AS211838-2

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.