Autonomous system
AS7640 CITICNET China International Trust & Investment Corporation Management Information Center
Unclassified APNIC
Summary
CITIC Group
enterprise legacy
CITICNET is the CITIC Group, formerly the China International Trust & Investment Corporation. Founded in 1979, it is one of China's largest state-owned conglomerates, spanning financial services, manufacturing, materials, consumer businesses and urban development. AS7640 is registered to the group's management information department.
What it's used for
- Corporate networking for the group. The AS announces a single
/20out of210.73.96.0/19, an APNIC block whose registry entry readsCITICNET/ CITIC Group Management Information Department, for roughly 4,000 IPv4 addresses. - This is a conglomerate's in-house IT network, not a service provider. There are no customer allocations under it and no subscriber-style reverse DNS.
Notable
- Enterprise address space. An address here belongs to the corporate estate of a very large company, so it is more likely to be an office, a corporate server or an outbound proxy than a home or datacentre host.
- The address block is a legacy APNIC allocation held directly by the company rather than assigned by a Chinese carrier, which is the mark of an organisation that was on the internet early and large enough to want its own routing.
Interesting
- The
Management Information Centerin the registry description is the group's internal IT function. Its presence in the AS name is a reminder that this AS was registered for the company's own use, and that the CITIC banking, securities and industrial subsidiaries the public knows run under their own separate networks.
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 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS4847 | China Networks Inter-Exchange | 59 |
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 1 prefixes · 4.10K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CN | China | 1 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS7640- Registry name
- CITICNET
- Abuse contact
- jixh@citic.com
- Registered
- 2008-09-04
- Last changed
- 2023-11-28
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 2 authorising AS7640
- ASPA
- no ASPA record
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS7640
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: 442 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