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Autonomous System

AS40065 · CNSERVERS LLC

Overview

AS40065 is announced on the Internet: RIPE RIS route collectors currently see 534 IPv4 prefixes and no IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 521,984 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 18 upstream neighbours (transit providers or peers) and 14 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), CloudRadium (HK) Limited (AS17476), and GTT Communications Inc. (AS3257). AS40065 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 9:49 PM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 23.224.0.1

The trace goes to 23.224.0.1, the first address of 23.224.0.0/15. 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 (534 prefixes)

PrefixAddresses
2.56.255.0/24256
2.59.151.0/24256
5.181.219.0/24256
23.224.0.0/15131,072
23.224.2.0/24256
23.224.4.0/24256
23.224.7.0/24256
23.224.9.0/24256
23.224.13.0/24256
23.224.15.0/24256
23.224.19.0/24256
23.224.20.0/24256
23.224.23.0/24256
23.224.25.0/24256
23.224.27.0/24256
23.224.32.0/24256
23.224.34.0/24256
23.224.35.0/24256
23.224.37.0/24256
23.224.39.0/24256
23.224.48.0/24256
23.224.51.0/24256
23.224.52.0/24256
23.224.53.0/24256
23.224.57.0/24256
23.224.58.0/24256
23.224.59.0/24256
23.224.64.0/24256
23.224.65.0/24256
23.224.66.0/24256
23.224.67.0/24256
23.224.68.0/24256
23.224.69.0/24256
23.224.70.0/24256
23.224.71.0/24256
23.224.75.0/24256
23.224.77.0/24256
23.224.78.0/24256
23.224.82.0/24256
23.224.87.0/24256
23.224.91.0/24256
23.224.93.0/24256
23.224.94.0/24256
23.224.99.0/24256
23.224.103.0/24256
23.224.105.0/24256
23.224.106.0/24256
23.224.113.0/24256
23.224.114.0/24256
23.224.115.0/24256
23.224.123.0/24256
23.224.124.0/24256
23.224.129.0/24256
23.224.133.0/24256
23.224.140.0/24256
23.224.144.0/24256
23.224.146.0/24256
23.224.147.0/24256
23.224.149.0/24256
23.224.171.0/24256
23.224.179.0/24256
23.224.180.0/24256
23.224.181.0/24256
23.224.184.0/24256
23.224.191.0/24256
23.224.192.0/24256
23.224.194.0/24256
23.224.196.0/24256
23.224.199.0/24256
23.224.201.0/24256
23.224.206.0/24256
23.224.207.0/24256
23.224.210.0/24256
23.224.211.0/24256
23.224.212.0/24256
23.224.213.0/24256
23.224.218.0/24256
23.224.219.0/24256
23.224.233.0/24256
23.224.238.0/24256
23.224.255.0/24256
23.225.0.0/24256
23.225.4.0/23512
23.225.6.0/24256
23.225.9.0/24256
23.225.10.0/24256
23.225.13.0/24256
23.225.21.0/24256
23.225.23.0/24256
23.225.27.0/24256
23.225.32.0/24256
23.225.33.0/24256
23.225.34.0/24256
23.225.35.0/24256
23.225.36.0/24256
23.225.37.0/24256
23.225.38.0/24256
23.225.39.0/24256
23.225.45.0/24256
23.225.49.0/24256

Showing the first 100 of 534, in address order. Complete list on RIPEstat

IPv6 prefixes (none)

None currently seen.

Neighbours

Upstreams (transit or peers) (18)

ASNetworkVisibility
AS1299Arelion Sweden AB2,115
AS17476CloudRadium (HK) Limited1,590
AS3257GTT Communications Inc.1,393
AS6939Hurricane Electric LLC78
AS4809China Telecom Next Generation Carrier Network49
AS23764CTGNet22
AS286GTT Communications Inc.14
AS8220COLT Technology Services Group Limited13
AS58453China Mobile International Limited10
AS6057Administracion Nacional de Telecomunicaciones6
AS15412Flag Telecom UK Limited6
AS137409-5
AS2518BIGLOBE Inc.3
AS7195EDGEUNO S.A.S3
AS7575Australian Academic and Research Network (AARNet)3
AS17676-3
AS4134No.31,Jin-rong Street2
AS9505Taiwan Internet Gateway1

Downstreams (customers) (14)

ASNetworkVisibility
AS22427GNET INC.1,386
AS201106Spartan Host Ltd513
AS35251NetLab Global442
AS147002VMShell Inc.266
AS213840DDOS PROTECTION LTD259
AS18013ASLINE LIMITED257
AS216047INTECLOUD CDNK LTD256
AS33330CloudRadium L.L.C255
AS976CoreNET Inc.213
AS134176Cloudie Limited41
AS58453China Mobile International Limited40
AS15412Flag Telecom UK Limited26
AS9505Taiwan Internet Gateway22
AS9680-8

7 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.