AS24151 — CNNIC-CRITICAL-AP China Internet Network Infomation Center

AS24151 announces 17 IPv4 prefixes covering 11,520 addresses and 39 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 carries registry and critical infrastructure functions, evidenced by netnames CNNIC and CNNIC-CRITICAL-CN and registrants CNNIC IPAS CONFEDERATION and IRT-CNNIC-CN.
• The AS announces 11,520 IPv4 addresses across 20 prefixes and 120 IPv6 prefixes, with 10 observed neighbours, indicating a specialized infrastructure role rather than mass access or transit.

Notable

• Registrants consistently identify the holder as CNNIC IPAS CONFEDERATION or IRT-CNNIC-CN, aligning with the announcer's identity.
• The inventory is finely subdivided into multiple /22, /23, and /24 blocks within the 218.241.0.0/16 and 125.208.0.0/16 ranges, characteristic of an internal corporate estate.

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

Announced prefixes

• 42.83.128.0/23
• 42.83.144.0/22
• 125.208.35.0/24
• 125.208.37.0/24
• 125.208.38.0/23
• 125.208.41.0/24
• 125.208.42.0/24
• 125.208.49.0/24
• 203.119.25.0/24
• 203.119.33.0/24
• 218.241.96.0/20
• 218.241.112.0/22
• 218.241.116.0/23
• 218.241.118.0/24
• 218.241.121.0/24
• 218.241.122.0/23
• 218.241.124.0/22
• 2001:dc7:2::/47
• 2001:dc7:4::/46
• 2001:dc7:9::/48
• 2001:dc7:a::/48
• 2001:dc7:c::/46
• 2001:dc7:10::/44
• 2001:dc7:20::/43
• 2001:dc7:40::/42
• 2001:dc7:80::/41
• 2001:dc7:100::/40
• 2001:dc7:200::/39
• 2001:dc7:400::/38
• 2001:dc7:800::/37
• 2001:dc7:1001::/48
• 2001:dc7:1002::/47
• 2001:dc7:1004::/46
• 2001:dc7:1008::/45
• 2001:dc7:1010::/44
• 2001:dc7:1020::/43
• 2001:dc7:1040::/42
• 2001:dc7:1080::/41
• 2001:dc7:1100::/40
• 2001:dc7:1200::/39
• 2001:dc7:1400::/38
• 2001:dc7:1800::/37
• 2001:dc7:2000::/36
• 2001:dc7:2e00::/39
• 2001:dc7:3000::/36
• 2001:dc7:4000::/34
• 2001:dc7:8000::/33
• 2001:dc7:ffc4::/46
• 2001:dc7:ffc8::/45
• 2001:dc7:ffd0::/47
• 2001:dc7:ffd4::/46
• 2001:dc7:ffd8::/45
• 2001:dc7:ffe0::/44
• 2001:dc7:ffec::/46
• 2001:dc7:fff0::/44
• 2001:dc7:fffd::/48

Upstream networks

• AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
• AS4808 China Unicom Beijing Province Network
• AS1280 Internet Systems Consortium, Inc.
• AS23600 Korea Internet Security Agency
• AS4847 China Networks Inter-Exchange
• AS38283 CHINANET SiChuan Telecom Internet Data Center
• AS21859 Zenlayer Inc

Downstream networks

• AS23596 Korea Internet Security Agency
• AS58858 China Internet Network Infomation Center
• AS31529 DENIC eG

Adjacent networks

• AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS)
• AS4808 China Unicom Beijing Province Network
• AS1280 Internet Systems Consortium, Inc.
• AS23600 Korea Internet Security Agency
• AS4847 China Networks Inter-Exchange
• AS38283 CHINANET SiChuan Telecom Internet Data Center
• AS21859 Zenlayer Inc
• AS23596 Korea Internet Security Agency
• AS58858 China Internet Network Infomation Center
• AS31529 DENIC eG