AS24409 — CNNIC-CRITICAL-AP China Internet Network Infomation Center

AS24409 announces 6 IPv4 prefixes covering 2,304 addresses and 5 IPv6 prefixes.

About this network

The AS handle CNNIC-CRITICAL-AP is held by CNNIC (China Internet Network Information Center).

What it's used for

• The address space is primarily registered under the netname CNNIC-CRITICAL-CN, with one prefix (1.2.4.0/24) registered under SAIYU.
• The AS announces 2560 IPv4 addresses across 7 prefixes and 5 IPv6 prefixes, while maintaining only 8 observed neighbours. This high address-to-neighbour ratio suggests an internal or reserved infrastructure role rather than a transit or access network.

Notable

• Registrants are consistent with the announcer, listing IRT-CNNIC-CN and CNNIC IPAS CONFEDERATION for most blocks, though 1.2.4.0/24 is registered to IRT-SAIYU-CN.
• The inventory consists of small /23 and /24 blocks in the 42.83, 125.208, 203.119, and 1.2 ranges, alongside a /47 and /48 IPv6 allocation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 1.2.4.0/24
• 42.83.200.0/23
• 125.208.36.0/24
• 125.208.45.0/24
• 125.208.46.0/23
• 203.119.28.0/23
• 2001:dc7::/47
• 2001:dc7:1000::/48
• 2001:dc7:fffc::/48
• 2001:dc7:fffe::/47
• 2a04:3e00:1002::/48

Upstream networks

• AS9808 China Mobile Communications Group Co., Ltd.
• AS56910 Digital Realty Hellas Single Member S.A
• AS21859 Zenlayer Inc
• AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
• AS10111 Zeofast Network
• AS9260 Multinet Pakistan Pvt. Ltd.
• AS56044 China Mobile communications corporation

Adjacent networks

• AS9808 China Mobile Communications Group Co., Ltd.
• AS56910 Digital Realty Hellas Single Member S.A
• AS21859 Zenlayer Inc
• AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
• AS10111 Zeofast Network
• AS9260 Multinet Pakistan Pvt. Ltd.
• AS56044 China Mobile communications corporation