AS151257 Citigroup Services and Technology (China) Limited

CITICORP-CHINA - Citigroup Services and Technology (China) Limited · registered in China

IPv4 addresses2561 prefixes · <0.001% of announced IPv4

Rank in China#596largest network in CN by IPv4 space, of 601 · <0.01% of CN

Rank worldwide#71,828of 79,396 networks with IPv4

IPv6noneno IPv6 routes announced

CountryChina5,117 ASNs registered there

Open AS151257 in ASN lookup Look up an IP in this network (192.51.173.1) All networks in China

IPv4 prefixes

All 1 prefix, in address order.

192.51.173.0/24

Similar-sized networks in China

ASNNameIPv4 addresses

AS148982#593 BQIT-AS-AP - Bijie Qiulin Information Technology256

AS149511#594 YNCL-AS-AP - Yamu Technologies Co., Ltd.256

AS151245#595 AS151245-30 - China Internet Network Information Center256

AS151284#597 AS151284-69 - China Internet Network Information Center256

AS151640#598 QINGYETECHNOLOGY-AS-AP - Bengbu Qingye Technology256

AS198588#599 TUNGSTEN Hangzhou Tungsten Cloud Technology 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