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Autonomous System

AS39180 ยท LASOTEL SAS

Overview

AS39180 is announced on the Internet: RIPE RIS route collectors currently see 10 IPv4 prefixes and 2 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 16,640 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 58 upstream neighbours (transit providers or peers) and 16 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), IELO-LIAZO SERVICES SAS (AS29075), and Hurricane Electric LLC (AS6939). AS39180 was assigned by RIPE NCC, and its registration country is France.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:53 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 81.18.176.1, the first address of 81.18.176.0/20. 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 (10 prefixes)

PrefixAddresses
37.148.240.0/212,048
81.18.176.0/204,096
93.191.40.0/212,048
178.18.48.0/204,096
185.29.64.0/23512
185.153.244.0/221,024
185.191.201.0/24256
185.191.203.0/24256
188.93.40.0/212,048
195.13.34.0/24256

IPv6 prefixes (2 prefixes)

Prefix
2a01:378::/32
2a01:379::/32

Neighbours

Upstreams (transit or peers) (58)

ASNetworkVisibility
AS1299Arelion Sweden AB768
AS29075IELO-LIAZO SERVICES SAS470
AS6939Hurricane Electric LLC94
AS4455IX Reach Ltd34
AS25091IP-Max SA29
AS37497Network Platforms (PTY) LTD28
AS5405Inter.link GmbH25
AS3935131173 Services AB25
AS14840BR.Digital Telecom24
AS12779IT.Gate S.p.A.22
AS20764CJSC RASCOM21
AS33891Core-Backbone GmbH20
AS37468Angola Cables19
AS12637-18
AS34177Celeste SAS18
AS41327Fiber Telecom S.p.A.18
AS47147Anexia Cloud Solutions GmbH18
AS8298IPng Networks GmbH17
AS1103-16
AS34019Hivane Association16
AS48362Stadtwerke Feldkirch16
AS50673Serverius Holding B.V.15
AS6777Amsterdam Internet Exchange B.V.14
AS6797GlobalConnect AB14
AS55850Mercury NZ Limited14
AS3216PJSC "Vimpelcom"12
AS6758Monaco Telecom S.A.12
AS61049Exascale Ltd12
AS4657StarHub Ltd11
AS30844Liquid Telecommunications Ltd11

The 30 most visible of 58.

Downstreams (customers) (16)

ASNetworkVisibility
AS57004Soitec SA267
AS6050201 SYSTEM SRL255
AS202546Bluecom SAS249
AS201900OLGroupe EAGLE FOOTBALL GROUP SA226
AS202328ATELIER OLIVIER CHARNAY TELECOM SAS182
AS60902ACCESS HEBERGEMENT s.a.r.l.146
AS201479Bull SAS143
AS35009SOWILO NETWORK SARL100
AS201425NetEntreprise Ctre Reg Traitement Information Lyon88
AS48140cirtilnet Agence Centrale Des Organismes De Securite Sociale87
AS200621-86
AS51458-72
AS203500-52
AS209760-40
AS199568-2
AS203413-2

73 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.