Autonomous System

AS4723 Dolphin

BusinessActiveJapanJPNIC

AS4723 (DOLPHIN) is a business network operated by Dolphin in Japan, registered with JPNIC. It has 5 IPv4 prefixes with 25,600 addresses, which makes it the 5,964th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses25,600in 5 prefixes
IPv6 prefixes0none
Size rank#5,964of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationDolphin
AS nameDOLPHIN
Website—
Country Japan (JP)
Network typeBusiness
RegistryJPNIC
Abuse contact—
Registered—
Last updated2005-06-16

IPv4 prefixes

5 prefixes · 25,600 addresses
NetworkAddressesFirst – last address
61.122.64.0/198,19261.122.64.0 – 61.122.95.255
210.135.64.0/198,192210.135.64.0 – 210.135.95.255
210.173.224.0/198,192210.173.224.0 – 210.173.255.255
175.100.208.0/23512175.100.208.0 – 175.100.209.255
175.100.210.0/23512175.100.210.0 – 175.100.211.255

IPv6 prefixes

No IPv6 prefixes.

Query AS4723 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=AS4723&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS4723, with or without a key:

curl "https://api.ipapi.is/?q=61.122.64.1"

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