Autonomous System

AS131932 JR East Information Systems Company

BusinessActiveJapanJPNIC

AS131932 (JEIS-NET) is a business network operated by JR East Information Systems Company in Japan, registered with JPNIC. It has 71 IPv4 prefixes with 655,360 addresses, which makes it the 579th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses655,360in 71 prefixes
IPv6 prefixes0none
Size rank#579of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationJR East Information Systems Company
AS nameJEIS-NET
Websitejeis.co.jp
Country Japan (JP)
Network typeBusiness
RegistryJPNIC
Abuse contacthostmaster@idnic.net
Registered—
Last updated2018-04-24

IPv4 prefixes

71 prefixes · 655,360 addresses
NetworkAddressesFirst – last address
157.71.0.0/1732,768157.71.0.0 – 157.71.127.255
157.71.128.0/1732,768157.71.128.0 – 157.71.255.255
157.72.0.0/1732,768157.72.0.0 – 157.72.127.255
157.72.128.0/1732,768157.72.128.0 – 157.72.255.255
157.73.0.0/1732,768157.73.0.0 – 157.73.127.255
157.73.128.0/1732,768157.73.128.0 – 157.73.255.255
157.74.0.0/1732,768157.74.0.0 – 157.74.127.255
157.74.128.0/1732,768157.74.128.0 – 157.74.255.255
157.75.0.0/1732,768157.75.0.0 – 157.75.127.255
157.75.128.0/1732,768157.75.128.0 – 157.75.255.255
157.71.192.0/1816,384157.71.192.0 – 157.71.255.255
157.72.64.0/1816,384157.72.64.0 – 157.72.127.255
157.73.0.0/1816,384157.73.0.0 – 157.73.63.255
157.73.64.0/1816,384157.73.64.0 – 157.73.127.255
157.73.128.0/1816,384157.73.128.0 – 157.73.191.255
157.73.192.0/1816,384157.73.192.0 – 157.73.255.255
157.74.0.0/1816,384157.74.0.0 – 157.74.63.255
157.74.64.0/1816,384157.74.64.0 – 157.74.127.255
157.74.128.0/1816,384157.74.128.0 – 157.74.191.255
157.74.192.0/1816,384157.74.192.0 – 157.74.255.255
157.75.0.0/1816,384157.75.0.0 – 157.75.63.255
157.75.64.0/1816,384157.75.64.0 – 157.75.127.255
157.75.128.0/1816,384157.75.128.0 – 157.75.191.255
157.75.192.0/1816,384157.75.192.0 – 157.75.255.255
157.71.32.0/198,192157.71.32.0 – 157.71.63.255
The 25 largest of 71. The API and the database have all of them.

IPv6 prefixes

No IPv6 prefixes.

Query AS131932 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=AS131932&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS131932, with or without a key:

curl "https://api.ipapi.is/?q=157.71.0.1"

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