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Autonomous System

AS38333 · Symbio Networks

Overview

AS38333 is announced on the Internet: RIPE RIS route collectors currently see 143 IPv4 prefixes and no IPv6 prefix originated by this network. Together, its IPv4 prefixes cover 169,984 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 9 upstream neighbours (transit providers or peers) and 2 downstream neighbours (customers or networks it carries). Its most visible upstreams are Anycast Global Backbone (AS58511), Aussie Broadband (AS4764), and One New Zealand Group Limited (AS4768). AS38333 was assigned by APNIC, and its registration country is Australia.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 10:59 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 115.187.128.1, the first address of 115.187.128.0/17. 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 (143 prefixes)

PrefixAddresses
27.34.224.0/212,048
59.86.160.0/198,192
59.86.160.0/212,048
59.86.167.0/24256
59.86.168.0/212,048
59.86.173.0/24256
59.86.176.0/212,048
59.86.177.0/24256
59.86.178.0/24256
59.86.179.0/24256
59.86.180.0/24256
59.86.181.0/24256
59.86.182.0/24256
59.86.183.0/24256
59.86.184.0/212,048
59.86.187.0/24256
59.86.189.0/24256
103.5.96.0/221,024
103.6.188.0/221,024
103.12.100.0/221,024
103.16.92.0/221,024
103.153.164.0/24256
113.61.64.0/198,192
115.187.128.0/1732,768
115.187.128.0/1816,384
115.187.128.0/204,096
115.187.144.0/204,096
115.187.144.0/24256
115.187.145.0/24256
115.187.160.0/204,096
115.187.176.0/204,096
115.187.192.0/1816,384
115.187.192.0/204,096
115.187.208.0/204,096
115.187.224.0/204,096
115.187.240.0/204,096
123.51.0.0/1732,768
123.51.0.0/24256
123.51.1.0/24256
123.51.2.0/23512
123.51.2.0/24256
123.51.4.0/221,024
123.51.8.0/221,024
123.51.12.0/23512
123.51.12.0/24256
123.51.14.0/23512
123.51.16.0/221,024
123.51.20.0/23512
123.51.22.0/23512
123.51.24.0/221,024
123.51.28.0/23512
123.51.34.0/23512
123.51.36.0/221,024
123.51.40.0/212,048
123.51.48.0/212,048
123.51.48.0/24256
123.51.49.0/24256
123.51.50.0/23512
123.51.50.0/24256
123.51.51.0/24256
123.51.52.0/23512
123.51.52.0/24256
123.51.53.0/24256
123.51.54.0/23512
123.51.54.0/24256
123.51.55.0/24256
123.51.62.0/23512
123.51.64.0/23512
123.51.65.0/24256
123.51.68.0/221,024
123.51.68.0/24256
123.51.69.0/24256
123.51.70.0/24256
123.51.71.0/24256
123.51.72.0/212,048
123.51.74.0/23512
123.51.76.0/221,024
123.51.105.0/24256
123.51.107.0/24256
123.51.108.0/24256
123.51.110.0/23512
123.51.110.0/24256
123.51.116.0/23512
123.51.117.0/24256
123.51.120.0/24256
123.51.122.0/24256
123.51.123.0/24256
125.213.160.0/198,192
125.213.160.0/204,096
125.213.160.0/212,048
125.213.160.0/221,024
125.213.164.0/24256
125.213.165.0/24256
125.213.168.0/212,048
125.213.176.0/212,048
125.213.184.0/212,048
125.213.184.0/24256
125.213.190.0/24256
125.236.32.0/23512
125.236.33.0/24256

Showing the first 100 of 143, in address order. Complete list on RIPEstat

IPv6 prefixes (none)

None currently seen.

Neighbours

Upstreams (transit or peers) (9)

ASNetworkVisibility
AS58511Anycast Global Backbone610
AS4764Aussie Broadband557
AS4768One New Zealand Group Limited509
AS4648Global-Gateway Internet436
AS6939Hurricane Electric LLC83
AS35280F5 Networks SARL8
AS24115Equinix2
AS55850Mercury NZ Limited1
AS64073Vetta Group1

Downstreams (customers) (2)

ASNetworkVisibility
AS30967TP Global Operations Limited65
AS49915Megaport (UK) Limited64

5 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.