AS18239 NO.11 Xi San Huan Zhong Road,Beijing

CAPNET - NO.11 Xi San Huan Zhong Road,Beijing · registered in China

IPv4 addresses65,5367 prefixes · 0.002% of announced IPv4

Rank in China#125largest network in CN by IPv4 space, of 601 · 0.02% of CN

Rank worldwide#2,884of 79,396 networks with IPv4

IPv61 x /32 (65,536 x /48)1 prefixes

CountryChina5,117 ASNs registered there

Open AS18239 in ASN lookup Look up an IP in this network (115.84.0.1) All networks in China

IPv4 prefixes

All 7 prefixes, in address order.

115.84.0.0/18
202.148.96.0/19
210.73.64.0/19
210.75.192.0/19
211.147.128.0/19
218.246.64.0/19
219.232.192.0/19

IPv6 prefixes

All 1 prefix.

2403:6a00::/32

Similar-sized networks in China

ASNNameIPv4 addresses

AS137695#122 CHINATELECOM-XINJIANG-WULUMUQI-MAN - CHINATELECOM Xinjiang Wulumuqi MAN network67,072

AS133118#123 UNICOM-CN - China Unicom IP network66,560

AS56005#124 Fastidc - Zhengzhou Fastidc Technology Co.,Ltd.66,560

AS24371#126 CNGI-CHC-IX-AS-AP - CERNET2 IX at Jilin University65,536

AS137539#127 UNICOM-Harbin-IDC - China Unicom65,536

AS24137#128 HNPCNET - KuanggongLu, Pingdingshan, Henan, China65,536

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