Autonomous system
AS10206 CUZW-CN China Unicom Zhongwei Cloud
Hosting APNIC
Summary
China Unicom Zhongwei Cloud
hosting cloud china
CUZW-CN is China Unicom's cloud/data-centre network in Zhongwei, Ningxia — the desert city that China turned into a national data-centre cluster on the strength of cheap power and a cold, dry climate.
What it's used for
- Cloud and colocation hosting out of the Zhongwei data-centre park, and the Unicom-side connectivity that carries it.
Notable
This is hosting, and the reverse DNS proves what the space carries rather than merely suggesting it. Sampled addresses in 69.235.184.0/21 resolve to ec2-69-235-184-5.cn-northwest-1.compute.amazonaws.com.cn — Amazon EC2 instances in the AWS China (Ningxia) region, whose physical home is Zhongwei. So this AS is announcing address space that fronts public-cloud compute, not subscribers and not a corporate office.
RIS sees 7 announced IPv4 prefixes totalling 3,584 addresses, 2 IPv6 prefixes, and 2 observed neighbours. Two neighbours confirms it is not a carrier — Unicom's transit business runs on other ASNs; this one is a leaf that exists to originate the cloud campus's space.
Remember what rDNS does and does not say: the PTRs establish that AWS China workloads live here, not that Amazon holds the network. AWS's China regions are operated by licensed local partners over Chinese carrier infrastructure, which is precisely the arrangement this AS is a piece of.
Interesting
69.235.184.0/21 is legacy ARIN-region IPv4 — North American space — carrying EC2 instances inside China. The IPv6 announcements, by contrast, are straightforward China Unicom blocks out of 2408::/16.
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, 1 downstream and 4 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS4837 | CHINA UNICOM China169 Backbone | 523 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, 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 · 1.54K addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CN | China | 6 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS10206- Registry name
- CUZW-CN
- Abuse contact
- hqs-ipabuse@chinaunicom.cn
- Registered
- 2008-09-04
- Last changed
- 2025-01-22
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 21 valid, 0 with no ROA
- ROAs
- 21 authorising AS10206
- ASPA
- no ASPA record
- IRR
- 38% registered · 8 of 21 announcements 11 other origin
- Route objects
- 12 naming AS10206
Reputation
Classification and threat
Hosting Datacenter or cloud provider. Addresses are servers, not people.
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: 442 networks and 1,773 prefixes, as published 2026-10-13. 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