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AS24151 China Internet Network Infomation Center

CNNIC-CRITICAL-AP - China Internet Network Infomation Center · registered in China

IPv4 addresses13,05623 prefixes · <0.001% of announced IPv4
Rank in China#222largest network in CN by IPv4 space, of 601 · <0.01% of CN
Rank worldwide#7,901of 79,396 networks with IPv4
IPv665,522 x /48125 prefixes
CountryChina5,117 ASNs registered there
Open AS24151 in ASN lookup Look up an IP in this network (42.83.128.1) All networks in China

IPv4 prefixes

All 23 prefixes, in address order.

  • 42.83.128.0/23
  • 42.83.131.0/24
  • 42.83.144.0/22
  • 125.208.35.0/24
  • 125.208.36.0/22
  • 125.208.41.0/24
  • 125.208.42.0/23
  • 125.208.49.0/24
  • 203.119.25.0/24
  • 203.119.26.0/24
  • 203.119.29.0/24
  • 203.119.31.0/24
  • 203.119.33.0/24
  • 218.241.96.0/23
  • 218.241.98.0/23
  • 218.241.100.0/22
  • 218.241.104.0/21
  • 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

IPv6 prefixes

All 125 prefixes.

  • 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::/37
  • 2001:dc7:2800::/38
  • 2001:dc7:2c00::/40
  • 2001:dc7:2d00::/41
  • 2001:dc7:2d80::/42
  • 2001:dc7:2dc0::/43
  • 2001:dc7:2de0::/44
  • 2001:dc7:2df0::/45
  • 2001:dc7:2df8::/46
  • 2001:dc7:2dfc::/47
  • 2001:dc7:2dfe::/48
  • 2001:dc7:2e00::/39
  • 2001:dc7:3000::/36
  • 2001:dc7:4000::/36
  • 2001:dc7:5000::/37
  • 2001:dc7:5800::/38
  • 2001:dc7:5c00::/40
  • 2001:dc7:5d00::/45
  • 2001:dc7:5d08::/46
  • 2001:dc7:5d0c::/48
  • 2001:dc7:5d0d::/48
  • 2001:dc7:5d0e::/47
  • 2001:dc7:5d10::/44
  • 2001:dc7:5d20::/43
  • 2001:dc7:5d40::/44
  • 2001:dc7:5d50::/46
  • 2001:dc7:5d54::/47
  • 2001:dc7:5d56::/47
  • 2001:dc7:5d58::/45
  • 2001:dc7:5d60::/44
  • 2001:dc7:5d70::/45
  • 2001:dc7:5d78::/45
  • 2001:dc7:5d80::/42
  • 2001:dc7:5dc0::/45
  • 2001:dc7:5dc8::/46
  • 2001:dc7:5dcc::/48
  • 2001:dc7:5dcd::/48
  • 2001:dc7:5dce::/47
  • 2001:dc7:5dd0::/44
  • 2001:dc7:5de0::/47
  • 2001:dc7:5de2::/47
  • 2001:dc7:5de4::/46
  • 2001:dc7:5de8::/45
  • 2001:dc7:5df0::/45
  • 2001:dc7:5df8::/45
  • 2001:dc7:5e00::/39
  • 2001:dc7:6000::/35
  • 2001:dc7:8000::/34
  • 2001:dc7:c000::/37
  • 2001:dc7:c800::/38
  • 2001:dc7:cc00::/40
  • 2001:dc7:cd00::/44
  • 2001:dc7:cd10::/45
  • 2001:dc7:cd18::/47
  • 2001:dc7:cd1a::/48
  • 2001:dc7:cd1b::/48
  • 2001:dc7:cd1c::/46
  • 2001:dc7:cd20::/43
  • 2001:dc7:cd40::/42
  • 2001:dc7:cd80::/41
  • 2001:dc7:ce00::/39
  • 2001:dc7:d000::/37
  • 2001:dc7:d800::/38
  • 2001:dc7:dc00::/40
  • 2001:dc7:dd00::/47
  • 2001:dc7:dd02::/47
  • 2001:dc7:dd04::/48
  • 2001:dc7:dd05::/48
  • 2001:dc7:dd06::/47
  • 2001:dc7:dd08::/45
  • 2001:dc7:dd10::/44
  • 2001:dc7:dd20::/43
  • 2001:dc7:dd40::/42
  • 2001:dc7:dd80::/41
  • 2001:dc7:de00::/39
  • 2001:dc7:e000::/36
  • 2001:dc7:f000::/37
  • 2001:dc7:f800::/38
  • 2001:dc7:fc00::/39
  • 2001:dc7:fe00::/40
  • 2001:dc7:ff00::/41
  • 2001:dc7:ff80::/42
  • 2001:dc7:ffc0::/47
  • 2001:dc7:ffc2::/48
  • 2001:dc7:ffc4::/46
  • 2001:dc7:ffc8::/45
  • 2001:dc7:ffd0::/47
  • 2001:dc7:ffd4::/47
  • 2001:dc7:ffd6::/47
  • 2001:dc7:ffd8::/45
  • 2001:dc7:ffe0::/45
  • 2001:dc7:ffe8::/47
  • 2001:dc7:ffea::/48
  • 2001:dc7:ffec::/48
  • 2001:dc7:ffed::/48
  • 2001:dc7:ffee::/47
  • 2001:dc7:fff0::/45
  • 2001:dc7:fff8::/47
  • 2001:dc7:fffa::/48
  • 2001:dc7:fffd::/48

Other ASNs named China Internet Network Infomation Center

3 other networks use the same organisation name; together with AS24151 they announce 18,688 IPv4 addresses.

ASNNameIPv4 addresses
AS24406CNNIC-CRITICAL-AP - China Internet Network Infomation Center CN3,328
AS24409CNNIC-CRITICAL-AP - China Internet Network Infomation Center CN2,048
AS58858CNNIC-CRITICAL-AP - China Internet Network Infomation Center CN256

Similar-sized networks in China

ASNNameIPv4 addresses
AS136192#219 CHINATELECOM-HUBEI-XIANGYANG-IDC - Xiangyang, Hubei Province, P.R.China.14,336
AS24430#220 Chinapost - Jia No.8, North Lishi Road, Xicheng Dist.Beijing, China14,336
AS134760#221 ChinaNet-Hebei-Shijiazhuang-IDC - Shijiazhuang IDC network, CHINANET Hebei province13,312
AS134770#223 CHINANET-JIANGSU-SUZHOU-TAIHU-IDC - CHINANET Jiangsu province Suzhou taihu IDC network13,056
AS9809#224 NovaNetwork - SHENZHEN NOVA TECHNOLOGIES DEVELOPMENT.,LTD.12,800
AS55999#225 SAKURA-TELECOM - Shanghai Sakura Communications Co., Ltd.,12,288

IP-to-ASN data: iptoasn.com (public domain). Snapshot downloaded 2026-11-11, refreshed daily. Ranges are what each network announces in BGP, not registry allocations. Data sources