IPv4 prefix

133.87.0.0/16

IP Prefix (CIDR)

133.87.0.0/16

Subnet Mask

255.255.0.0

Address Count

65,536

IP Range

133.87.0.0 - 133.87.255.255

Subnet calculator

Calculate subnet details

Registered Owner

Handle

IRT-JPNIC-JP

Country

Japan (JP)

Address

Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda Chiyoda-ku, Tokyo 101-0047, japan

Registry

APNIC

Registered Prefix

133.0.0.0/8 (133.0.0.0 - 133.255.255.255)

BGP Announcements

Announced Prefix	Relationship	Origin ASN	Description	Country	First Address	Last Address
133.87.0.0/16	Exact	AS7509	Hokkaido University	Japan (JP)	133.87.0.0	133.87.255.255