Autonomous system
AS18400 XTREME-AS-AP Xtreme Networks Limited
Unclassified APNIC
Summary
Xtreme Networks
isp residential nz business
XTREME-AS-AP is operated by Xtreme Networks Limited.
What it's used for
- The address space carries residential and business internet access, evidenced by reverse DNS entries such as
203-171-40-0.xtreme.net.nzand203-171-55-254.static-xtreme.net.nz. - The network announces 9,728 IPv4 addresses across 4 prefixes and 1 IPv6 prefix, with 23 observed neighbours, indicating a regional access provider role.
Notable
- Registrants include Xtreme Networks Limited, Lantech Limited, and the Royal Society of New Zealand, showing the AS hosts space for multiple distinct entities.
- The inventory includes a /19 block for Xtreme Networks and smaller /24 blocks for Lantech Limited and the Royal Society of New Zealand.
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
Recorded at 2 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| New Zealand Internet Exchange Auckland | Auckland, New Zealand | 43.243.21.28 |
| MegaPort-IX Auckland | Auckland, New Zealand | 43.243.22.109 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-10, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 4 prefixes · 9.73K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| NZ | New Zealand | 5 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS18400- Registry name
- XTREME-AS-AP
- Registrant
- Xtreme Networks Limited
- Abuse contact
- abuse@xtreme.net.nz
- Registered
- 2008-09-04
- Last changed
- 2020-06-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 8 with no ROA
- ROAs
- 0 authorising AS18400
- ASPA
- no ASPA record
- IRR
- 100% registered · 8 of 8 announcements
- Route objects
- 26 naming AS18400
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: 431 networks and 1,775 prefixes, as published 2026-10-11. 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