Autonomous System

AS3258 xTom Japan Corporation

HostingActiveJapanRIPE

AS3258 (XTOM-JAPAN) is a hosting network operated by xTom Japan Corporation in Japan, registered with RIPE. It has 135 IPv4 prefixes with 36,096 addresses and 26 IPv6 prefixes, which makes it the 4,987th largest of 82,283 active autonomous systems by IPv4 space.

IPv4 addresses36,096in 135 prefixes
IPv6 prefixes26≈ 6.3 × 10²⁹ addresses
Size rank#4,987of 82,283 active ASNs
Abuser scoreElevated2.57% of its addresses flagged · method

Details

OrganizationxTom Japan Corporation
AS nameXTOM-JAPAN
Websitextom.co.jp
Country Japan (JP)
Network typeHosting
RegistryRIPE
Abuse contactabuse@xtom.co.jp
Registered2011-06-17
Last updated2025-03-31

IPv4 prefixes

135 prefixes · 36,096 addresses
NetworkAddressesFirst – last address
193.32.148.0/221,024193.32.148.0 – 193.32.151.255
36.50.84.0/2351236.50.84.0 – 36.50.85.255
103.53.80.0/23512103.53.80.0 – 103.53.81.255
172.93.220.0/23512172.93.220.0 – 172.93.221.255
5.253.17.0/242565.253.17.0 – 5.253.17.255
43.239.249.0/2425643.239.249.0 – 43.239.249.255
45.8.112.0/2425645.8.112.0 – 45.8.112.255
45.8.113.0/2425645.8.113.0 – 45.8.113.255
45.8.114.0/2425645.8.114.0 – 45.8.114.255
45.8.222.0/2425645.8.222.0 – 45.8.222.255
45.11.44.0/2425645.11.44.0 – 45.11.44.255
45.11.46.0/2425645.11.46.0 – 45.11.46.255
45.12.89.0/2425645.12.89.0 – 45.12.89.255
45.14.64.0/2425645.14.64.0 – 45.14.64.255
45.14.65.0/2425645.14.65.0 – 45.14.65.255
45.14.66.0/2425645.14.66.0 – 45.14.66.255
45.14.67.0/2425645.14.67.0 – 45.14.67.255
45.66.129.0/2425645.66.129.0 – 45.66.129.255
45.66.130.0/2425645.66.130.0 – 45.66.130.255
45.66.131.0/2425645.66.131.0 – 45.66.131.255
45.66.216.0/2425645.66.216.0 – 45.66.216.255
45.66.217.0/2425645.66.217.0 – 45.66.217.255
45.66.218.0/2425645.66.218.0 – 45.66.218.255
45.89.232.0/2425645.89.232.0 – 45.89.232.255
45.89.234.0/2425645.89.234.0 – 45.89.234.255
The 25 largest of 135. The API and the database have all of them.

IPv6 prefixes

26 prefixes
  • 2a0d:c7c1::/32
  • 2a12:a300::/32
  • 2a12:a301::/32
  • 2a12:a302::/32
  • 2a12:a304::/32
  • 2a12:a305::/32
  • 2a12:a306::/32
  • 2a12:a307::/32
  • 2a12:a303:100::/40
  • 2403:71c0::/48
  • 2403:71c0:1000::/48
  • 2403:71c0:2000::/48
  • 2403:71c0:3000::/48
  • 2403:71c0:8000::/48
  • 2403:fbc0::/48
  • 2403:fbc0:2000::/48
  • 2403:fbc0:4000::/48
  • 2a09:7::/48
  • 2a09:7:1::/48
  • 2a12:a303:100::/48
  • 2a12:a303:101::/48
  • 2a12:a303:102::/48
  • 2a12:a303:103::/48
  • 2a12:a303:11a::/48
  • 2a12:a303:11e::/48
The 25 largest of 26. The API and the database have all of them.

Query AS3258 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=AS3258&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS3258, with or without a key:

curl "https://api.ipapi.is/?q=193.32.148.1"

Largest networks in Japan

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