Autonomous System

AS58791 GMO Internet, Inc.

HostingActiveJapanJPNIC

AS58791 (GMO-I-R2) is a hosting network operated by GMO Internet, Inc. in Japan, registered with JPNIC. It has 181 IPv4 prefixes with 128,512 addresses and 2 IPv6 prefixes, which makes it the 1,995th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses128,512in 181 prefixes
IPv6 prefixes2≈ 9.9 × 10²⁷ addresses
Size rank#1,995of 82,200 active ASNs
Abuser scoreLow0.23% of its addresses flagged · method

Details

OrganizationGMO Internet, Inc. · hosting provider profile
AS nameGMO-I-R2
Websitegmo.jp
Country Japan (JP)
Network typeHosting
RegistryJPNIC
Abuse contact—
Registered—
Last updated2026-05-22

IPv4 prefixes

181 prefixes · 128,512 addresses
NetworkAddressesFirst – last address
160.251.128.0/1732,768160.251.128.0 – 160.251.255.255
133.88.96.0/198,192133.88.96.0 – 133.88.127.255
163.44.96.0/198,192163.44.96.0 – 163.44.127.255
163.44.128.0/198,192163.44.128.0 – 163.44.159.255
118.27.224.0/204,096118.27.224.0 – 118.27.239.255
133.117.64.0/204,096133.117.64.0 – 133.117.79.255
157.120.208.0/204,096157.120.208.0 – 157.120.223.255
150.95.8.0/212,048150.95.8.0 – 150.95.15.255
157.7.120.0/212,048157.7.120.0 – 157.7.127.255
163.44.64.0/212,048163.44.64.0 – 163.44.71.255
210.172.184.0/212,048210.172.184.0 – 210.172.191.255
211.125.80.0/212,048211.125.80.0 – 211.125.87.255
133.130.0.0/221,024133.130.0.0 – 133.130.3.255
133.130.4.0/221,024133.130.4.0 – 133.130.7.255
160.251.84.0/221,024160.251.84.0 – 160.251.87.255
210.131.236.0/221,024210.131.236.0 – 210.131.239.255
219.97.68.0/221,024219.97.68.0 – 219.97.71.255
124.110.208.0/23512124.110.208.0 – 124.110.209.255
157.120.214.0/23512157.120.214.0 – 157.120.215.255
157.120.222.0/23512157.120.222.0 – 157.120.223.255
160.236.22.0/23512160.236.22.0 – 160.236.23.255
219.97.66.0/23512219.97.66.0 – 219.97.67.255
219.97.72.0/23512219.97.72.0 – 219.97.73.255
124.110.208.0/24256124.110.208.0 – 124.110.208.255
124.110.209.0/24256124.110.209.0 – 124.110.209.255
The 25 largest of 181. The API and the database have all of them.

IPv6 prefixes

2 prefixes
  • 2400:8500:2000::/36
  • 2400:8500:7000::/36

Query AS58791 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=AS58791&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS58791, with or without a key:

curl "https://api.ipapi.is/?q=160.251.128.1"

Other networks of GMO Internet, Inc.

AS7506 GMO Internet, Inc.269,056 IPv4 addresses

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