JAXAnet
AS3488 (JAXAnet) announces at least 9 prefixes:
133.56.0.0/16
Japan Network Information Center
1970-01-01
JPNIC-NET-JP-ERX
133.0.0.0-133.255.255.255
133.56.96.0/22
133.56.101.0/24
133.56.114.0/24
133.56.202.0/24
133.74.0.0/17
133.74.128.0/18
202.245.153.0/24
Information Systems Department, Japan Aerospace Exploration Agency
TSUKUBA-NET-CIDR-BLK-JP
202.245.153.0-202.245.153.255
202.251.177.0/24
202.251.177.0-202.251.177.255
0