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Autonomous System

AS38022 · REANNZ National Research and Education Network

Overview

AS38022 is announced on the Internet: RIPE RIS route collectors currently see 13 IPv4 prefixes and 3 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 14,336 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 14 upstream neighbours (transit providers or peers) and 33 downstream neighbours (customers or networks it carries). Its most visible upstreams are Level 3 Parent, LLC (AS3356), Hurricane Electric LLC (AS6939), and Feenix Communications Limited (AS135069). AS38022 was assigned by APNIC, and its registration country is New Zealand.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 16, 2026 at 11:01 PM UTC. This page is refreshed at most every 12 hours.

Go further

The trace goes to 163.7.128.1, the first address of 163.7.128.0/19. 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 (13 prefixes)

PrefixAddresses
163.7.128.0/198,192
163.7.128.0/24256
163.7.136.0/24256
163.7.144.0/212,048
163.7.159.0/24256
202.27.240.0/23512
202.27.242.0/24256
202.27.243.0/24256
202.36.85.0/24256
202.36.86.0/24256
202.50.199.0/24256
202.50.205.0/24256
210.7.32.0/204,096

IPv6 prefixes (3 prefixes)

Prefix
2404:138::/32
2404:139::/32
2404:139::/48

Neighbours

Upstreams (transit or peers) (14)

ASNetworkVisibility
AS3356Level 3 Parent, LLC6,131
AS6939Hurricane Electric LLC1,492
AS135069Feenix Communications Limited1,130
AS11537Internet2218
AS9002RETN Limited103
AS137409GSL Networks Pty LTD96
AS35889University of Hawaii78
AS24115Equinix36
AS2907Research Organization of Information and Systems, National Institute of Informatics35
AS64073Vetta Group34
AS52025ParadoxNetworks Limited29
AS20326TeraSwitch Networks Inc.2
AS7575Australian Academic and Research Network (AARNet)1
AS394256Tech Futures Interactive Inc.1

Downstreams (customers) (33)

ASNetworkVisibility
AS38299REANNZ Corporate741
AS23905Victoria University of Wellington629
AS38626NEW ZEALAND INSTITUTE FOR PUBLIC HEALTH AND FORENSIC SCIENCE LIMITED514
AS9431The University of Auckland372
AS9432University of Canterbury315
AS9433Massey University294
AS10110Manukau Institute of Technology262
AS24398Auckland University of Technology262
AS38319Lincoln University, Canterbury, New Zealand262
AS55747Southern Institute of Technology,261
AS38305-260
AS132264-260
AS17542-259
AS45138-259
AS45787-259
AS133928-259
AS681-258
AS4667-258
AS55524-257
AS131272-257
AS9483-256
AS38473-256
AS38906-256
AS131187-256
AS133857-256
AS135288-256
AS55702-251
AS135431-251
AS134227-245
AS55746-239

The 30 most visible of 33.

10 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.