asn.dev

Autonomous system

AS18242 CDIH Chengdu Information Harbor Co., Ltd

Unclassified APNIC

IPv4 addresses 6.14K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CN
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Chengdu Information Harbor

China · AI-generated

isp china business

CDIH is the AS handle for Chengdu Information Harbor Co., Ltd.

What it's used for

  • The address space carries netnames identified as CDIH with registrant IRT-CDIH-CN, indicating a single corporate operator.
  • The AS announces 6144 IPv4 addresses across 2 prefixes (218.246.192.0/20 and 125.214.96.0/21) and maintains 1 observed neighbour, a ratio consistent with a regional access or business network rather than a transit provider.

Notable

  • Registrants for both announced prefixes align with the announcer, listing IRT-CDIH-CN as the responsible party.
  • The inventory consists of two distinct IPv4 blocks with no announced 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

Full topology · Graph

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.

ASNetworkPaths seen
AS9929CHINA UNICOM Industrial Internet Backbone117

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-21, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 6.14K addresses IPv6 0 prefixes

CountryNamePrefixes
CNChina2

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS18242
Registry name
CDIH
Abuse contact
5531871@qq.com
Registered
2008-09-04
Last changed
2023-11-28
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS18242
ASPA
no ASPA record
IRR
50% registered · 1 of 2 announcements
Route objects
1 naming AS18242

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 1,779 prefixes, as published 2026-10-22. 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

Cross-check