Autonomous System

AS33965 · LITECOM AG

Overview

AS33965 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 19,456 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 19 upstream neighbours (transit providers or peers) and 13 downstream neighbours (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), Init7 (Switzerland) Ltd. (AS13030), and Arelion Sweden AB (AS1299). AS33965 was assigned by RIPE NCC, and its registration country is Switzerland.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 12:53 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this network Open in the BGP viewer WHOIS of 83.144.192.1

The trace goes to 83.144.192.1, the first address of 83.144.192.0/18. 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)

Prefix	Addresses
37.128.178.0/24	256
83.144.192.0/18	16,384
91.212.109.0/24	256
91.213.194.0/24	256
185.220.83.0/24	256
193.47.132.0/22	1,024
193.73.114.0/24	256
193.228.197.0/24	256
195.162.166.0/24	256
195.225.61.0/24	256

IPv6 prefixes (2 prefixes)

Prefix
2a02:e70::/32
2a02:e70:1060::/48

Neighbours

Upstreams (transit or peers) (19)

AS	Network	Visibility
AS6939	Hurricane Electric LLC	1,335
AS13030	Init7 (Switzerland) Ltd.	1,016
AS1299	Arelion Sweden AB	765
AS8220	COLT Technology Services Group Limited	628
AS34309	Link11 GmbH	256
AS34019	Hivane Association	44
AS198433	CKW Fiber Services AG	38
AS9002	RETN Limited	24
AS24961	WIIT AG	22
AS39351	31173 Services AB	22
AS34177	Celeste SAS	18
AS47147	Anexia Cloud Solutions GmbH	16
AS8298	IPng Networks GmbH	15
AS5405	Inter.link GmbH	14
AS29075	IELO-LIAZO SERVICES SAS	14
AS1764	Next Layer Telekommunikationsdienstleistungs- und Beratungs GmbH	11
AS9009	M247 Europe SRL	7
AS25091	IP-Max SA	7
AS1836	green.ch AG	1

Downstreams (customers) (13)

AS	Network	Visibility
AS198433	CKW Fiber Services AG	852
AS59647	EKT AG	428
AS204594	Galliker Transport AG	404
AS57676	Azienda elettrica ticinese	378
AS206137	Societa Elettrica Sopracenerina SA (SES)	378
AS210378	knet Kanton Zurich	371
AS28686	Aveniq AG	274
AS210308	Paraplegie Schweizer Paraplegiker-Zentrum Nottwil AG	239
AS210468	Eniwa AG	149
AS34960	Netcetera AG	131
AS47506	-	112
AS209848	-	78
AS41872	-	58

40 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.