Autonomous System

AS18128 The Institute of Physical and Chemical Research

BusinessActiveJapanAPNIC

AS18128 (RIKEN) is a business network operated by The Institute of Physical and Chemical Research in Japan, registered with APNIC. It has 1 IPv4 prefix with 65,536 addresses, which makes it the 3,684th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses65,536in 1 prefix
IPv6 prefixes0none
Size rank#3,684of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationThe Institute of Physical and Chemical Research
AS nameRIKEN
Websiteriken.jp
Country Japan (JP)
Network typeBusiness
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-10-03

IPv4 prefixes

1 prefix · 65,536 addresses
NetworkAddressesFirst – last address
134.160.0.0/1665,536134.160.0.0 – 134.160.255.255

IPv6 prefixes

No IPv6 prefixes.

Query AS18128 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS18128&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS18128, with or without a key:

curl "https://api.ipapi.is/?q=134.160.0.1"

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