IPv4 prefix

51.18.0.0/16

IP Prefix (CIDR): 51.18.0.0/16
Subnet Mask: 255.255.0.0
Address Count: 65,536
IP Range: 51.18.0.0 - 51.18.255.255
Subnet calculator: Calculate subnet details

Registered Owner

Handle: MICROSOFT-MAINT
Country: United States of America (US)
Registry: RIPENCC
Registered Prefixes: 51.18.0.0/17 (51.18.0.0 - 51.18.127.255)
51.18.128.0/17 (51.18.128.0 - 51.18.255.255)
Delegated Prefix: 51.18.0.0/16 (51.18.0.0 - 51.18.255.255)