Autonomous System

AS4729 Japan Atomic Energy Agency

GovernmentActiveJapanAPNIC

AS4729 (JAEA) is a government network operated by Japan Atomic Energy Agency in Japan, registered with APNIC. It has 2 IPv4 prefixes with 131,072 addresses, which makes it the 1,915th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses131,072in 2 prefixes
IPv6 prefixes0none
Size rank#1,915of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationJapan Atomic Energy Agency
AS nameJAEA
Websitejaea.go.jp
Country Japan (JP)
Network typeGovernment
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-10-21

IPv4 prefixes

2 prefixes · 131,072 addresses
NetworkAddressesFirst – last address
133.53.0.0/1665,536133.53.0.0 – 133.53.255.255
133.188.0.0/1665,536133.188.0.0 – 133.188.255.255

IPv6 prefixes

No IPv6 prefixes.

Query AS4729 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=AS4729&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS4729, with or without a key:

curl "https://api.ipapi.is/?q=133.53.0.1"

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