asn.dev

Autonomous system

AS24406 CNNIC-CRITICAL-AP China Internet Network Infomation Center

Unclassified ARIN

IPv4 addresses 4.35K 12 prefixes
IPv6 prefixes 6 counted as prefixes, not addresses
Countries 1 mostly CN
Exchanges 0 recorded by PCH
Upstreams 9 0 downstream
Flagged prefixes 0 none

Summary

CNNIC

China · AI-generated

registry china infrastructure critical

CNNIC-CRITICAL-AP is operated by CNNIC (China Internet Network Information Center).

What it's used for

  • The address space carries registry and critical infrastructure functions, evidenced by netnames CNNIC and CNNIC-CRITICAL-CN across the majority of prefixes.
  • The AS announces 4096 IPv4 addresses and 6 IPv6 prefixes, with 10 observed neighbours, indicating a role focused on managing specific critical infrastructure blocks rather than broad transit or access.

Notable

  • Registrants are predominantly IRT-CNNIC-CN, aligning with the announcer, though one prefix (210.2.4.0/24) is registered to IRT-SAIYU-CN with netname SAIYU.
  • The inventory consists of 12 IPv4 prefixes, including several /23 and /24 blocks in the 42.83.0.0/16 and 125.208.0.0/16 ranges, alongside a single /24 in 210.2.0.0/16.

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

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

9 upstream, 0 downstream and 12 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS4837CHINA UNICOM China169 Backbone471
AS33071Internet Systems Consortium, Inc.443
AS21859Zenlayer Inc316
AS17547M1 NET LTD207
AS58461No.288,Fu-chun Road33
AS38283CHINANET SiChuan Telecom Internet Data Center10
AS137702Nanjing, Jiangsu Province, P.R.China.10
AS4808China Unicom Beijing Province Network9

All 9 upstreams →

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, 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 12 prefixes · 4.35K addresses IPv6 6 prefixes

CountryNamePrefixes
CNChina18

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS24406
Registry name
CNNIC-CRITICAL-AP
Abuse contact
ipas@cnnic.cn
Registered
2008-09-04
Last changed
2021-06-16
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 48 with no ROA
ROAs
0 authorising AS24406
ASPA
no ASPA record
IRR
96% registered · 46 of 48 announcements
Route objects
120 naming AS24406

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 1,781 prefixes, as published 2026-10-16. 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