IPv4 prefix

42.51.0.0/17

IP Prefix (CIDR): 42.51.0.0/17
Subnet Mask: 255.255.128.0
Address Count: 32,768
IP Range: 42.51.0.0 - 42.51.127.255
Subnet calculator: Calculate subnet details

Registered Owner

Handle: IRT-CNISP-CN
Country: China (CN)
Address: Beijing CNISP Technology Co., Ltd
Registry: APNIC
Registered Prefix: 42.51.0.0/17 (42.51.0.0 - 42.51.127.255)
Delegated Prefix: 42.51.0.0/16 (42.51.0.0 - 42.51.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
42.51.0.0/16	Covering	AS56005	Zhengzhou Fastidc Technology Co. Ltd.	China (CN)	42.51.0.0	42.51.255.255