AS58858 China Internet Network Infomation Center

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

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in China#563largest network in CN by IPv4 space, of 601 · <0.01% of CN

Rank worldwide#61,471of 79,396 networks with IPv4

IPv61 x /481 prefixes

CountryChina5,117 ASNs registered there

Open AS58858 in ASN lookup Look up an IP in this network (203.99.18.1) All networks in China

IPv4 prefixes

All 1 prefix, in address order.

203.99.18.0/24

IPv6 prefixes

All 1 prefix.

2001:dc7:8::/48

Other ASNs named China Internet Network Infomation Center

3 other networks use the same organisation name; together with AS58858 they announce 18,688 IPv4 addresses.

ASNNameIPv4 addresses

AS24151CNNIC-CRITICAL-AP - China Internet Network Infomation Center CN13,056

AS24406CNNIC-CRITICAL-AP - China Internet Network Infomation Center CN3,328

AS24409CNNIC-CRITICAL-AP - China Internet Network Infomation Center CN2,048

Similar-sized networks in China

ASNNameIPv4 addresses

AS151490#560 GAONIT-AS-KR - GaonIT256

AS218668#561 CENA-NET XU YINUO256

AS24310#562 NGDC-AS-AP - Net-Glyph Data Center256

AS133465#564 DKU-AS-AP - Duke Kunshan University256

AS139767#565 CHINANET-AS-OA - China Telecom Headquarters OA network256

AS146771#566 CCBFT - CCB Fintech Co., Ltd.256

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