IPv4 prefix

121.11.16.0/20

IP Prefix (CIDR): 121.11.16.0/20
Subnet Mask: 255.255.240.0
Address Count: 4,096
IP Range: 121.11.16.0 - 121.11.31.255
Subnet calculator: Calculate subnet details

Registered Owners

Registration 1 of 2

Handle: IRT-CHINANET-CN
Country: China (CN)
Address: No.31 ,jingrong street,beijing 100032
Registry: APNIC
Registered Prefix: 121.8.0.0/13 (121.8.0.0 - 121.15.255.255)

Registration 2 of 2

Owner: SHANTOU WANJIAN
Handle: ST-AP
Country: China (CN)
Address: Telecom Building, Shan Zhang Road, Shantou, China
Registry: APNIC
Registered Prefix: 121.11.16.0/29 (121.11.16.0 - 121.11.16.7)
Delegated Prefix: 121.8.0.0/13 (121.8.0.0 - 121.15.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
121.11.16.0/20	Exact	AS140308	China Telecom	China (CN)	121.11.16.0	121.11.31.255