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Autonomous System

AS41666 · openfactory nordic oy trading as Institute for Pyrotechnical Cleaning

Overview

AS41666 is announced on the Internet: RIPE RIS route collectors currently see 2 IPv4 prefixes and 1 IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 512 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 29 upstream neighbours (transit providers or peers) and 1 downstream neighbour (customers or networks it carries). Its most visible upstreams are Hurricane Electric LLC (AS6939), BHARTI Airtel Ltd. (AS9498), and PEER 1031 LLC (AS1031). AS41666 was assigned by RIPE NCC, and its registration country is Finland.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 1:54 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 91.216.79.1, the first address of 91.216.79.0/24. 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 (2 prefixes)

PrefixAddresses
91.216.79.0/24256
195.138.203.0/24256

IPv6 prefixes (1 prefix)

Prefix
2001:67c:8e4::/48

Neighbours

Upstreams (transit or peers) (29)

ASNetworkVisibility
AS6939Hurricane Electric LLC38,186
AS9498BHARTI Airtel Ltd.5,059
AS1031PEER 1031 LLC2,732
AS14840BR.Digital Telecom1,993
AS22356Durand do Brasil Ltda1,919
AS5405Inter.link GmbH1,682
AS31500Global Network Management Inc733
AS28917Fiord Networks, UAB577
AS43727JSC KVANT-TELEKOM364
AS34927iFog GmbH286
AS2914NTT America, Inc.236
AS49585-185
AS41327Fiber Telecom S.p.A.173
AS25091IP-Max SA110
AS6204INTERKVM HOST SRL91
AS61049Exascale Ltd57
AS56911Warian S.R.L.47
AS20326TeraSwitch Networks Inc.41
AS34019Hivane Association38
AS3935131173 Services AB37
AS1103SURF B.V.26
AS9044BSE Software GmbH22
AS8298IPng Networks GmbH12
AS20766-10
AS58057Securebit AG6
AS401753BIXCE Inc3
AS209022-2
AS41441-1
AS56584-1

Downstreams (customers) (1)

ASNetworkVisibility
AS56883Airmass 1 AB454

708 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.