IPv4 prefix

202.237.52.0/22

IP Prefix (CIDR)
202.237.52.0/22
Subnet Mask
255.255.252.0
Registration 1 of 2
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
202.236.0.0/14 (202.236.0.0 - 202.239.255.255)
Registration 2 of 2
Owner
Japan Network Information Center
Handle
JNIC1-AP
Country
Japan (JP)
Address
Uchikanda OS Bldg 4F, 2-12-6 Uchi-Kanda Chiyoda-ku, Tokyo 101-0047, Japan
Registry
JPNIC
Registered Prefix
202.237.52.0/23 (202.237.52.0 - 202.237.53.255)
Delegated Prefix
202.236.0.0/14 (202.236.0.0 - 202.239.255.255)
Announced Prefix Relationship Origin ASN Description Country First Address Last Address
202.237.52.0/22 Exact AS2907 Research Organization of Information and Systems National Institute of Informatics Japan (JP) 202.237.52.0 202.237.55.255