AS7509
Education
Data retrieved at
This AS-only summary is estimated from a sample IP within a prefix announced by this AS, not from a specific query. Search a real IP for exact details.
Network
AS Number
AS7509
Company
Hokkaido University
AS Domain
hokudai.ac.jp
Using host.io for pre-visualize domains.
Type
Education
IPv4 Addresses
131,328
IPv6 Addresses
0
Registry (RIR)
APNIC
133.87.0.0/16
Abuse Contacts
Announced Prefixes (3)
Netblock
Num. of IPs
RPKI
RPKI Origin Validation
RPKI verifies that an IP prefix is legitimately announced by the authorized Autonomous System (ASN) using Route Origin Authorizations (ROAs).
Unknown
No valid ROA was found for this prefix.
UNKNOWN
Validated Prefix
133.87.0.0/16
Authorized ASN
Not available
IP Geolocation
Country
Japan
Continent
Asia
European Union
No
Phone prefix
+81
Currency
Japanese Yen (JPY ¥)