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Autonomous System

AS30633 · Leaseweb USA, Inc.

Overview

AS30633 is announced on the Internet: RIPE RIS route collectors currently see 87 IPv4 prefixes and 39 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 152,064 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 6 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), Arelion Sweden AB (AS1299), and Cogent Communications, LLC (AS174). AS30633 was assigned by ARIN, and its registration country is United States.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:52 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 207.58.128.1, the first address of 207.58.128.0/18. 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 (87 prefixes)

PrefixAddresses
5.181.40.0/24256
5.181.41.0/24256
23.19.160.0/221,024
23.82.8.0/212,048
23.82.128.0/221,024
23.105.0.0/204,096
23.105.36.0/221,024
23.105.160.0/198,192
23.111.252.0/221,024
31.57.193.0/24256
31.57.232.0/24256
31.57.235.0/24256
31.58.148.0/24256
31.58.151.0/24256
40.27.232.0/212,048
45.129.127.0/24256
45.135.37.0/24256
45.145.57.0/24256
46.202.59.0/24256
64.64.0.0/204,096
64.64.16.0/221,024
64.120.108.0/24256
64.131.64.0/198,192
66.92.92.0/221,024
66.93.36.0/221,024
72.63.8.0/221,024
72.63.24.0/221,024
72.63.32.0/221,024
72.63.40.0/221,024
72.63.44.0/221,024
72.63.56.0/221,024
72.63.64.0/221,024
72.63.152.0/221,024
80.253.250.0/24256
84.37.32.0/23512
84.37.46.0/23512
84.37.176.0/23512
84.37.190.0/23512
84.37.192.0/23512
84.37.222.0/23512
84.37.254.0/23512
91.124.141.0/24256
91.124.146.0/24256
91.124.253.0/24256
92.71.32.0/23512
92.71.38.0/23512
92.71.46.0/23512
92.71.64.0/23512
92.71.96.0/23512
92.71.126.0/23512
92.113.1.0/24256
92.113.3.0/24256
92.113.7.0/24256
103.139.50.0/24256
104.166.83.0/24256
108.59.0.0/204,096
108.62.0.0/221,024
108.62.116.0/221,024
108.62.120.0/221,024
142.91.32.0/221,024
162.210.192.0/212,048
162.219.212.0/221,024
172.241.232.0/212,048
172.241.240.0/212,048
173.208.0.0/212,048
173.208.126.0/24256
185.28.70.0/24256
192.96.200.0/212,048
193.5.125.0/24256
193.27.23.0/24256
198.7.56.0/212,048
199.38.116.0/221,024
199.58.84.0/221,024
199.102.224.0/212,048
199.115.112.0/212,048
199.167.40.0/221,024
199.167.45.0/24256
199.230.52.0/221,024
206.214.216.0/212,048
207.58.128.0/1816,384
207.244.64.0/1816,384
209.50.224.0/198,192
213.201.240.0/23512
213.201.248.0/23512
213.201.254.0/23512
216.22.0.0/1816,384
216.38.48.0/204,096

IPv6 prefixes (39 prefixes)

Prefix
2604:9a00::/32
2607:f5b7::/32
2a00:9d20:101::/48
2a06:1184:77::/48
2a06:35c0:2123::/48
2a06:35c2::/32
2a0a:2d06:99::/48
2a0c:7886:66::/48
2a0e:15c7:55::/48
2a0e:f200:154::/48
2a0e:f200:164::/48
2a0e:f200:174::/48
2a0e:f200:184::/48
2a0e:f201::/32
2a0e:f201:1::/48
2a0f:1e00:123::/48
2a0f:1e00:456::/48
2a0f:1e00:987::/48
2a0f:1e00:abc::/48
2a0f:1e00:def9::/48
2a0f:1e01:1::/48
2a0f:1e81:2::/48
2a0f:1e81:cdae::/48
2a0f:2d81::/32
2a0f:2e80::/29
2a0f:3d80::/48
2a0f:3d84::/32
2a0f:7d02:1::/48
2a0f:e1c6::/32
2a0f:e1c7:2::/48
2a0f:e7c2::/32
2a10:32c0::/29
2a10:35c0::/29
2a10:6d40::/29
2a11:fd80::/29
2a12:ac40::/32
2a12:ac41::/32
2a13:18c0:1::/48
2a13:c900:44::/48

Neighbours

Upstreams (transit or peers) (6)

ASNetworkVisibility
AS16265LeaseWeb Network B.V.297
AS1299Arelion Sweden AB104
AS174Cogent Communications, LLC72
AS3257GTT Communications Inc.50
AS6453TATA COMMUNICATIONS (AMERICA) INC36
AS286GTT Communications Inc.1

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.