Autonomous System

AS17701 Seinan Gakuin University

EducationActiveJapanAPNIC

AS17701 (SEINAN) is an education network operated by Seinan Gakuin University in Japan, registered with APNIC. It has 3 IPv4 prefixes with 131,072 addresses and 1 IPv6 prefix, which makes it the 1,937th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses131,072in 3 prefixes
IPv6 prefixes1≈ 1.2 × 10²⁴ addresses
Size rank#1,937of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationSeinan Gakuin University
AS nameSEINAN
Websiteseinan-gu.ac.jp
Country Japan (JP)
Network typeEducation
RegistryAPNIC
Abuse contacthostmaster@nic.ad.jp
Registered—
Last updated2024-08-22

IPv4 prefixes

3 prefixes · 131,072 addresses
NetworkAddressesFirst – last address
160.23.0.0/1665,536160.23.0.0 – 160.23.255.255
160.23.0.0/1732,768160.23.0.0 – 160.23.127.255
160.23.128.0/1732,768160.23.128.0 – 160.23.255.255

IPv6 prefixes

1 prefix
  • 2001:df4:b400::/48

Query AS17701 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=AS17701&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS17701, with or without a key:

curl "https://api.ipapi.is/?q=160.23.0.1"

Largest networks in Japan

AS17676 SoftBank Mobile Corp.49,061,888 IPv4 addressesAS4713 NTT DOCOMO BUSINESS,Inc.28,624,896 IPv4 addressesAS2516 KDDI CORPORATION18,152,448 IPv4 addressesAS9824 JCOM Co., Ltd.10,315,776 IPv4 addressesAS2907 Authoritative information regarding AS Number8,960,512 IPv4 addressesAS17506 UCOM Corp.5,508,096 IPv4 addresses