Autonomous System

AS24572 Yahoo Japan

BusinessActiveJapanAPNIC

AS24572 (YAHOO-JP-AS-AP) is a business network operated by Yahoo Japan in Japan, registered with APNIC. It has 4 IPv4 prefixes with 118,784 addresses and 1 IPv6 prefix, which makes it the 2,101st largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses118,784in 4 prefixes
IPv6 prefixes1≈ 7.9 × 10²⁸ addresses
Size rank#2,101of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationYahoo Japan
AS nameYAHOO-JP-AS-AP
Websiteyahoo.co.jp
Country Japan (JP)
Network typeBusiness
RegistryAPNIC
Abuse contactroute-admin@mail.yahoo.co.jp
Registered—
Last updated2021-05-18

IPv4 prefixes

4 prefixes · 118,784 addresses
NetworkAddressesFirst – last address
183.79.0.0/1665,536183.79.0.0 – 183.79.255.255
124.83.128.0/1732,768124.83.128.0 – 124.83.255.255
114.111.64.0/1816,384114.111.64.0 – 114.111.127.255
114.110.48.0/204,096114.110.48.0 – 114.110.63.255

IPv6 prefixes

1 prefix
  • 2400:7e00::/32

Query AS24572 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=AS24572&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS24572, with or without a key:

curl "https://api.ipapi.is/?q=183.79.0.1"

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