Autonomous system
AS58593 BLUECLOUD Shanghai Blue Cloud Technology Co.,Ltd
Unclassified APNIC
Summary
Shanghai Blue Cloud Technology (Azure China)
hosting cloud
Shanghai Blue Cloud Technology Co., Ltd (BLUECLOUD) operates the network behind Microsoft Azure's China regions, which are run locally under a Chinese partner rather than by Microsoft directly.
What it's used for
- Public cloud hosting and compute for Azure customers within China (Azure China / China East and related regions).
Notable
- This is a cloud/hosting network, not a consumer mobile carrier — addresses here front datacenter and cloud workloads, not end-user handsets.
- China's regulatory model requires foreign cloud providers to operate through a domestic partner, which is why Azure China sits under a separate operator.
Interesting
- Running Azure in China through a local entity keeps the service inside China's regulatory and data-residency framework, isolated from Microsoft's global cloud ASNs.
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
5 upstream, 0 downstream and 7 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 20 prefixes · 771K addresses IPv6 16 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CN | China | 36 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS58593- Registry name
- BLUECLOUD
- Abuse contact
- ipabuse@oe.21vianet.com
- Registered
- 2012-05-04
- Last changed
- 2024-07-17
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 41 valid, 0 with no ROA
- ROAs
- 45 authorising AS58593
- ASPA
- no ASPA record
- IRR
- 100% registered · 41 of 41 announcements
- Route objects
- 52 naming AS58593
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 1,784 prefixes, as published 2026-10-19. 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