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Autonomous System

AS44547 · NetundWeb NETUNDWEB TELEKOMUNIKASYON TICARET LIMITED SIRKETI

Overview

AS44547 is announced on the Internet: RIPE RIS route collectors currently see 8 IPv4 prefixes and no IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 2,048 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 3 upstream neighbours (transit providers or peers) and 13 downstream neighbours (customers or networks it carries). Its most visible upstreams are ROUTEFENCE NETWORK TELEKOMUNIKASYON LIMITED SIRKETI (AS209451), GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI (AS208972), and Vodafone Net Iletisim Hizmetler AS (AS15924). AS44547 was assigned by RIPE NCC, and its registration country is Türkiye.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:43 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 37.221.77.1, the first address of 37.221.77.0/24. 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 (8 prefixes)

PrefixAddresses
37.221.77.0/24256
45.133.39.0/24256
45.141.149.0/24256
80.208.221.0/24256
87.121.103.0/24256
89.35.52.0/24256
131.222.225.0/24256
166.1.1.0/24256

IPv6 prefixes (none)

None currently seen.

Neighbours

Upstreams (transit or peers) (3)

ASNetworkVisibility
AS209451ROUTEFENCE NETWORK TELEKOMUNIKASYON LIMITED SIRKETI2,062
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI1,074
AS15924Vodafone Net Iletisim Hizmetler AS757

Downstreams (customers) (13)

ASNetworkVisibility
AS213795Mustafa Cakir346
AS211422OnlineInternet Emre Aydogan319
AS213654ESA LIVA Bilgi Teknolojileri San. Ve Tic. LTD. STI315
AS200283Mehmet Fatih Gultekin trading as Senkronet Bilgisayar Destek Hizmetleri276
AS218880Turbyte Turbyte LLC272
AS215411VeruniX danis danisman267
AS47516DEHOST INTERNET VE BILISIM TEKNOLOJILERI SANAYI TICARET LIMITED SIRKETI263
AS49805Berke FINCANCI257
AS50565MuzafferGuler Muzaffer Guler257
AS208394ETERNAL GROUP DENIZCILIK EGITIM MAKINE DANISMANLIK DIS TICARET LIMITED SIRKETI257
AS214000-257
AS218850-256
AS207805-2

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.