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Autonomous System

AS59253 ยท LEASEWEB SINGAPORE PTE. LTD.

Overview

AS59253 is announced on the Internet: RIPE RIS route collectors currently see 96 IPv4 prefixes and 4 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 46,848 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 8 upstream neighbours (transit providers or peers) and no downstream neighbour (customers or networks it carries). Its most visible upstreams are LeaseWeb Network B.V. (AS16265), Cogent Communications, LLC (AS174), and TATA COMMUNICATIONS (AMERICA) INC (AS6453). AS59253 was assigned by APNIC, and its registration country is Singapore.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 17, 2026 at 3:51 AM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 23.106.64.1, the first address of 23.106.64.0/20. 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 (96 prefixes)

PrefixAddresses
23.19.52.0/24256
23.19.53.0/24256
23.19.196.0/24256
23.19.197.0/24256
23.106.48.0/212,048
23.106.50.0/24256
23.106.64.0/204,096
23.106.67.0/24256
23.106.120.0/212,048
23.106.248.0/212,048
23.106.248.0/221,024
23.106.252.0/221,024
23.108.96.0/212,048
23.108.96.0/221,024
23.108.100.0/221,024
23.111.12.0/221,024
23.111.14.0/23512
43.249.38.0/23512
43.249.38.0/24256
43.249.39.0/24256
45.38.109.0/24256
45.38.110.0/24256
45.38.111.0/24256
45.38.112.0/24256
45.39.62.0/24256
45.39.72.0/24256
45.39.73.0/24256
45.39.75.0/24256
64.120.92.0/221,024
64.120.110.0/23512
64.120.110.0/24256
64.120.111.0/24256
66.78.59.0/24256
69.161.221.0/24256
81.31.208.0/24256
96.9.210.0/24256
103.21.221.0/24256
103.64.18.0/24256
103.64.19.0/24256
103.119.218.0/24256
103.119.219.0/24256
103.198.77.0/24256
103.254.152.0/221,024
103.254.154.0/23512
104.252.139.0/24256
104.252.140.0/24256
104.252.142.0/24256
104.252.149.0/24256
104.253.150.0/24256
104.253.155.0/24256
104.253.171.0/24256
104.253.172.0/24256
141.193.22.0/24256
142.91.96.0/23512
142.91.98.0/23512
142.91.100.0/23512
142.91.102.0/23512
142.228.64.0/23512
142.228.154.0/23512
151.246.1.0/24256
151.246.182.0/24256
154.37.92.0/23512
162.249.59.0/24256
164.152.166.0/23512
167.253.158.0/24256
171.22.62.0/23512
172.93.209.0/24256
172.93.218.0/23512
172.96.190.0/23512
172.252.0.0/24256
172.252.4.0/24256
172.255.208.0/221,024
172.255.212.0/23512
173.234.0.0/23512
173.234.2.0/23512
173.234.4.0/221,024
173.234.8.0/221,024
173.234.12.0/23512
173.234.14.0/23512
178.94.30.0/24256
185.129.122.0/24256
194.127.192.0/23512
195.85.19.0/24256
198.252.101.0/24256
198.252.110.0/24256
202.134.241.0/24256
202.157.153.0/24256
203.24.92.0/24256
206.232.52.0/23512
209.17.118.0/24256
209.58.160.0/204,096
209.58.160.0/212,048
209.58.168.0/212,048
209.58.176.0/212,048
209.58.176.0/221,024
209.58.180.0/221,024

IPv6 prefixes (4 prefixes)

Prefix
2001:df1:800::/48
2402:a7c0::/32
2402:a7c0:3000::/36
2405:a280:22::/48

Neighbours

Upstreams (transit or peers) (8)

ASNetworkVisibility
AS16265LeaseWeb Network B.V.329
AS174Cogent Communications, LLC269
AS6453TATA COMMUNICATIONS (AMERICA) INC237
AS9002RETN Limited203
AS4637Telstra Global167
AS2914NTT America, Inc.76
AS1299Arelion Sweden AB57
AS37468Angola Cables1

Downstreams (customers) (0)

None seen.

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.