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Autonomous System

AS57795 ยท NG-BLU Networks B.V.

Overview

AS57795 is announced on the Internet: RIPE RIS route collectors currently see 35 IPv4 prefixes and 11 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 49,920 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 18 upstream neighbours (transit providers or peers) and 7 downstream neighbours (customers or networks it carries). Its most visible upstreams are atom86 BV (AS8455), GTT Communications Inc. (AS3257), and Broadband Hosting B.V. (AS24785). AS57795 was assigned by RIPE NCC, and its registration country is Netherlands.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:42 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 64.23.96.1, the first address of 64.23.96.0/19. 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 (35 prefixes)

PrefixAddresses
23.249.232.0/212,048
37.114.88.0/212,048
45.67.110.0/23512
45.154.45.0/24256
45.154.46.0/24256
64.23.96.0/198,192
64.26.32.0/204,096
83.174.128.0/204,096
93.92.24.0/212,048
95.129.26.0/23512
149.143.0.0/198,192
185.6.204.0/221,024
185.34.176.0/221,024
185.37.64.0/221,024
185.40.252.0/221,024
185.43.212.0/221,024
185.47.168.0/221,024
185.62.12.0/221,024
185.74.184.0/24256
185.74.185.0/24256
185.93.76.0/221,024
185.121.112.0/221,024
185.125.116.0/221,024
185.127.184.0/24256
185.140.72.0/23512
185.144.20.0/221,024
185.145.208.0/221,024
185.147.114.0/24256
185.155.168.0/23512
185.157.144.0/221,024
185.221.156.0/221,024
185.254.41.0/24256
185.254.42.0/23512
188.239.183.0/24256
193.169.51.0/24256

IPv6 prefixes (11 prefixes)

Prefix
2a00:9340::/29
2a00:f5e0::/32
2a01:5460::/32
2a01:8d20::/32
2a04:1c0::/29
2a04:eec0::/29
2a05:f840::/29
2a06:9e00::/29
2a07:36c0::/29
2a07:4a40::/29
2a07:a740::/29

Neighbours

Upstreams (transit or peers) (18)

ASNetworkVisibility
AS8455atom86 BV541
AS3257GTT Communications Inc.467
AS24785Broadband Hosting B.V.424
AS58075X2com BV312
AS6939Hurricane Electric LLC262
AS25091IP-Max SA36
AS8298IPng Networks GmbH20
AS8218Zayo Infrastructure France SA18
AS50673Serverius Holding B.V.8
AS37100SEACOM Limited7
AS6204INTERKVM HOST SRL6
AS6696VERIXI SA5
AS29632Netassist International EOOD4
AS39249-2
AS48646SDRmedia Verwaltungs GmbH2
AS286GTT Communications Inc.1
AS37468Angola Cables1
AS209022Tschajera Limited1

Downstreams (customers) (7)

ASNetworkVisibility
AS62215Vomar Voordeelmarkt B.V.266
AS210332Swadon Swadon B.V.265
AS209390CTNET ICT Infrastructuur B.V262
AS60479Exclusief.net BV213
AS60805ACC ICT B.V.204
AS201403ACC ICT B.V.116
AS201405ACC ICT B.V.113

25 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.