Autonomous system
AS45131 REANNZ-OFFICE REANNZ Head Office
Unclassified ARIN
Summary
REANNZ
education research nz backbone
REANNZ-OFFICE is operated by Research and Education Advanced Network New Zealand.
What it's used for
- The address space carries research and education traffic, evidenced by the netname
REANNZand reverse DNS entries likedhcp-163-7-130-128.reannz.co.nz. - The AS announces 768 IPv4 addresses across 2 prefixes and 2 IPv6 prefixes, with only 1 observed neighbour, indicating a dedicated backbone or internal network segment rather than a transit provider.
- Traffic consists of high-speed connectivity for New Zealand's universities and research institutions, supporting data-intensive academic workloads.
Notable
- Registrants for both announced prefixes are listed as
Research and Education Advanced Network New Zealand, matching the AS holder. - REANNZ was formerly known as the Kiwi Advanced Research and Education Network (KAREN).
- The inventory is compact, consisting of two contiguous IPv4 blocks and two corresponding IPv6 prefixes.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS38299 | REANNZ Corporate | 192 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-25, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 768 addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NZ | New Zealand | 4 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS45131- Registry name
- REANNZ-OFFICE
- Registrant
- Research and Education Advanced Network New Zealand
- Abuse contact
- noc@reannz.co.nz
- Registered
- 2008-09-04
- Last changed
- 2020-06-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 8 authorising AS45131
- ASPA
- 1 declared providers
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 16 naming AS45131
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 443 networks and 1,779 prefixes, as published 2026-10-24. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere